{"id":343,"date":"2023-07-06T16:09:27","date_gmt":"2023-07-06T16:09:27","guid":{"rendered":"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/"},"modified":"2023-07-06T16:09:27","modified_gmt":"2023-07-06T16:09:27","slug":"bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen","status":"publish","type":"post","link":"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/","title":{"rendered":"Bespreking van stelsels van vergelijkingen met behulp van de gaussische methode"},"content":{"rendered":"<p>In deze sectie zullen we zien <strong>hoe we een stelsel vergelijkingen kunnen bespreken en oplossen volgens de Gauss-Jordan-methode<\/strong> . Dat wil zeggen, bepaal of het een bepaald compatibel systeem (DCS), een onbepaald compatibel systeem (ICS) of een incompatibel systeem is. Daarnaast vindt u voorbeelden en opgeloste oefeningen zodat u de concepten perfect kunt oefenen en verwerken.<\/p>\n<p> Om te begrijpen wat we hierna gaan uitleggen, is het belangrijk dat je al weet hoe je een systeem oplost met behulp van de <a href=\"https:\/\/mathority.org\/nl\" target=\"_blank\" aria-label=\"undefined (abre en una nueva pesta\u00f1a)\" rel=\"noreferrer noopener\">Gauss-methode<\/a> . We raden je daarom aan even te kijken voordat je verdergaat.<\/p>\n<h2 class=\"wp-block-heading\"> Compatibele systemen bepaald door de Gauss-methode<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Zolang de laatste rij van de Gauss-matrix is<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e51d504887586898a4b88863a128c8e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{(0 \\ 0 \\ n \\ | \\ m)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"85\" style=\"vertical-align: -5px;\"><\/p>\n<p> , zijn<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b170995d512c659d8668b4e42e1fef6b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"n\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p> En<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6b41df788161942c6f98604d37de8098_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"15\" style=\"vertical-align: 0px;\"><\/p>\n<p> twee willekeurige getallen, dit is een <strong>SCD<\/strong> (Systeem Compatibel Bepaald). Daarom <strong>heeft het systeem een unieke oplossing<\/strong> .<\/p>\n<p> De overgrote meerderheid van de systemen is SCD.<\/p>\n<h3 class=\"wp-block-heading\"> Voorbeeld:<\/h3>\n<p> We hebben bijvoorbeeld dit systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bab5d5823e45833aa691a3510a2a23eb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} 3x+2y-z=1 \\\\[2ex] 3x+8y+z=1\\\\[2ex] 6x+4y-z=-1 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"157\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Waarvan de uitgebreide matrix is:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1f8daea11edeedfd6b86bb251fe19032_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} 3x+2y-z=1 \\\\[2ex] 3x+8y+z=1\\\\[2ex] 6x+4y-z=-1 \\end{array} \\right\\}} \\ \\longrightarrow \\ \\left( \\begin{array}{ccc|c} 3 &amp; 2 &amp; -1 &amp; 1 \\\\[2ex] 3 &amp; 8 &amp; 1 &amp; 1 \\\\[2ex] 6 &amp; 4 &amp; -1 &amp; -1 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"364\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Om het systeem op te lossen moeten we op de rijen van de matrix werken en alle elementen onder de hoofddiagonaal naar 0 converteren. Dus van de tweede rij trekken we de eerste rij af en van de derde rij trekken we de eerste regel af, vermenigvuldigd met 2:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d68ac25745ddc71d1e7f55f68dd4ea7a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}  3 &amp; 2 &amp; -1 &amp; 1 \\\\[2ex] 3 &amp; 8 &amp; 1 &amp; 1 \\\\[2ex] 6 &amp; 4 &amp; -1 &amp; -1 \\end{array} \\right) \\begin{array}{c}   \\\\[2ex] \\xrightarrow{f_2 -f_1}    \\\\[2ex] \\xrightarrow{f_3 -2f_1} &amp; \\end{array} \\left( \\begin{array}{ccc|c}   3 &amp; 2 &amp; -1 &amp; 1 \\\\[2ex] 0 &amp; 6 &amp; 2 &amp; 0 \\\\[2ex] 0 &amp; 0 &amp; 1 &amp; -3  \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"385\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Zodra alle getallen onder de hoofddiagonaal 0 zijn, keren we terug om het systeem in vergelijkingsvorm om te zetten:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4457f1b034e72c6945bfe609eff52b9a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 3 &amp; 2 &amp; -1 &amp; 1 \\\\[2ex] 0 &amp; 6 &amp; 2 &amp; 0 \\\\[2ex] 0 &amp; 0 &amp; 1 &amp; -3 \\end{array} \\right) \\ \\longrightarrow \\ \\left. \\begin{array}{r} 3x+2y-z=1 \\\\[2ex] 6y+2z=0\\\\[2ex] 1z=-3 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"357\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Dit systeem is dus <strong>SCD<\/strong> , omdat de matrix is verschoven en de laatste rij van het type is<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5d701f6e0afb7579229228d226ee2186_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(0 \\ 0 \\ n \\ | \\ m)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"85\" style=\"vertical-align: -5px;\"><\/p>\n<p> . Daarom lossen we het op zoals altijd: door de onbekenden van onder naar boven uit de vergelijkingen te elimineren.<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0c5e90a86787314220c31ecd60d6f199_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"1z=-3\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"64\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-208c30aafe1c4928acff3cce03097853_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z = \\cfrac{-3}{1}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"66\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-67c7c1bd6ec188bc7f07448caa4fb8e6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{z=-3}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"56\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>Nu we z kennen, vullen we de waarde ervan in de tweede vergelijking in om de waarde van te vinden<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0af556714940c351c933bba8cf840796_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"><\/p>\n<p> : <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1db2032db54c788fd661ffa5111bf6b2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6y+2z=0\\ \\xrightarrow{z \\ = \\ -3} \\ 6y+2(-3)=0\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"287\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-131539e858428b6f26babc9730564d48_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6y-6=0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"81\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ee31c7e143e7eebbe4f91b706e908a94_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"6y=6\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"51\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5283f114522b33a4ac33f83cd7b40124_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=\\cfrac{6}{6}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"44\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5489dac6d2be260d4a09edf4813fa93b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{y=1}\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"41\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> En ten slotte doen we hetzelfde met de eerste vergelijking: we vervangen de waarden van de andere onbekenden en lossen op<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ede05c264bba0eda080918aaa09c4658_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> : <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d5505444d34955415e012a46af45f09b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x+2y-z=1 \\ \\xrightarrow{y \\ = \\ 1 \\ ; \\ z \\ = \\ -3} \\ 3x+2(1)-(-3)=1\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"416\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-65525763652f9a055c86603030aec3fe_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x+2+3=1\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"112\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-28feb5b7617223f938a89688d2e12037_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x=1-2-3\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"113\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-be5c4a85a1f5bd3fed2fe2f669a32357_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x=-4\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"66\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bf1c9bbd516dc5ab91aebc6a04b12ead_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-4}{3}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"67\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-176fc9e917ed897eefe381de76f1fe4d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x= -}\\cfrac{\\bm{4}}{\\bm{3}}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"58\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p> De oplossing van het stelsel vergelijkingen is daarom:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-42de799d301318c37cbb28213dba5bf6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x= -}\\cfrac{\\bm{4}}{\\bm{3}} \\qquad \\bm{y=1} \\qquad \\bm{z=-3}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"227\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"> Incompatibele systemen volgens de methode van Gauss<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> In de Gauss-matrix hebben we een rij met drie nullen op rij en een getal<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b7185fdc91d65f5980afc39d3554b074_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{(0 \\ 0 \\ 0 \\ | \\ n)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"78\" style=\"vertical-align: -5px;\"><\/p>\n<p> , het is een <strong>IS<\/strong> (Incompatibel Systeem) en daarom <strong>heeft het systeem geen oplossing<\/strong> .<\/p>\n<h3 class=\"estil_titol_H3 wp-block-heading\"> Voorbeeld:<\/h3>\n<p> Stel je bijvoorbeeld voor dat we na het werken met de Gauss-matrix van een systeem het volgende overhouden:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-defe65fa616eff800314ebc6dc6f552b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 4 &amp; 1 &amp; -1 &amp; 0 \\\\[2ex] 0 &amp; 3 &amp; 1 &amp; -1 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 2 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"149\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Zoals de laatste regel is<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8f44bbccb21c7112a3bbc67f6c4f1d8a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(0 \\ 0 \\ 0 \\ | \\ 2)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"76\" style=\"vertical-align: -5px;\"><\/p>\n<p> , dat wil zeggen drie nullen gevolgd door een getal aan het einde, is een <strong>IF<\/strong> (Incompatibel systeem) en daarom <strong>heeft het systeem geen oplossing<\/strong> .<\/p>\n<p> Hoewel het niet nodig is om het te weten, zul je hieronder zien waarom het geen oplossing heeft.<\/p>\n<p> Als we de laatste regel nemen, krijgen we deze vergelijking:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-03ecf1cf353eb7dcd6a343a8306df351_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(0 \\ 0 \\ 0 \\ | \\ 2) \\ \\longrightarrow \\ 0z = 2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"177\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> Deze vergelijking zal nooit vervuld worden, want welke waarde <em>z<\/em> ook aanneemt, het vermenigvuldigen met 0 zal nooit 2 opleveren (elk getal vermenigvuldigd met 0 geeft altijd 0). En aangezien aan deze vergelijking nooit zal worden voldaan, heeft het systeem geen oplossing.<\/p>\n<h2 class=\"wp-block-heading\"> Compatibele systemen niet bepaald door de Gauss-methode<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Telkens wanneer een rij van de Gauss-matrix gevuld is met 0<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-982c672f4c665a863d3047ebc079aae5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{(0 \\ 0 \\ 0 \\ | \\ 0)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"76\" style=\"vertical-align: -5px;\"><\/p>\n<p> , het is een <strong>SCI<\/strong> (Indeterminate Compatible System) en daarom <strong>heeft het systeem oneindige oplossingen<\/strong> .<\/p>\n<p> Laten we een voorbeeld bekijken van hoe u een ICS kunt oplossen:<\/p>\n<h3 class=\"wp-block-heading\"> Voorbeeld:<\/h3>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-18a63dfebc1f23923714e475aad2e808_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x+y+2z=6 \\\\[2ex] 2x+3y-1z=-2 \\\\[2ex] 3x+4y+z=4 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"166\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Zoals altijd maken we eerst de <strong>uitgebreide matrix van het systeem<\/strong> :<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f273040101827fdfea5c9a4858be5567_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x+y+2z=6 \\\\[2ex] 2x+3y-1z=-2 \\\\[2ex] 3x+4y+z=4 \\end{array} \\right\\} \\ \\longrightarrow \\ \\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 2 &amp; 3 &amp; -1 &amp; -2 \\\\[2ex] 3 &amp; 4 &amp; 1 &amp; 4 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"373\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Nu willen we dat alle getallen onder de hoofddiagonaal 0 zijn. Dus aan de tweede rij voegen we de eerste rij vermenigvuldigd met -2 toe:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a5b1c48f6fb4af86886d5388f2b2a0b7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{lrrr|r}  &amp;2 &amp; 3 &amp; -1 &amp; -2  \\\\ + &amp; -2 &amp; -2 &amp; -4 &amp; -12  \\\\ \\hline &amp; 0 &amp; 1 &amp; -5 &amp; -14  \\end{array} \\begin{array}{l} \\color{blue}\\bm{\\leftarrow f_2} \\\\ \\color{blue}\\bm{\\leftarrow -2f_1} \\\\ \\phantom{hline} \\\\ \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"68\" width=\"295\" style=\"vertical-align: -29px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c889a6f147c6b0430731aa778121af52_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}  1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 2 &amp; 3 &amp; -1 &amp; -2 \\\\[2ex] 3 &amp; 4 &amp; 1 &amp; 4\\end{array} \\right) \\begin{array}{c}   \\\\[2ex]  \\xrightarrow{f_2 -2f_1}  \\\\[2ex] &amp; \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 3 &amp; 4 &amp; 1 &amp; 4 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"394\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Om 3 naar 0 te converteren, voegen we in de derde regel de eerste regel vermenigvuldigd met -3 toe:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-53df3b7a8935a9c979dc450463a25b1f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{lrrr|r}  &amp; 3 &amp; 4 &amp; 1 &amp; 4 \\\\ + &amp; -3 &amp; -3 &amp; -6 &amp; -18  \\\\  \\hline &amp; 0 &amp; 1 &amp; -5 &amp; -14  \\end{array} \\begin{array}{l} \\color{blue}\\bm{\\leftarrow f_3} \\\\ \\color{blue}\\bm{\\leftarrow -3f_1} \\\\ \\phantom{hline} \\\\ \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"68\" width=\"295\" style=\"vertical-align: -29px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c5acccc51108267fef6d3320068743aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}  1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 3 &amp; 4 &amp; 1 &amp; 4 \\end{array} \\right) \\begin{array}{c}   \\\\[2ex]    \\\\[2ex] \\xrightarrow{f_3 -3f_1} &amp; \\end{array} \\left( \\begin{array}{ccc|c}  1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"403\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Om de 1 in de laatste regel om te zetten naar 0, voegen we in de derde regel de tweede regel vermenigvuldigd met -1 toe:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a386320e49668f86c83fa99665df4851_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{lrrr|r}  &amp; 0 &amp; 1 &amp; -5 &amp; -14   \\\\ + &amp; 0 &amp; -1 &amp; 5 &amp; 14  \\\\ \\hline &amp; 0 &amp; 0 &amp; 0 &amp; 0  \\end{array} \\begin{array}{l} \\color{blue}\\bm{\\leftarrow f_3} \\\\ \\color{blue}\\bm{\\leftarrow -1f_2} \\\\ \\phantom{hline} \\\\ \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"68\" width=\"282\" style=\"vertical-align: -29px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a02e4819adfbe7b80d2952f87f113757_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}   1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\end{array} \\right) \\begin{array}{c}   \\\\[2ex]    \\\\[2ex] \\xrightarrow{f_3 -1f_2} &amp; \\end{array} \\left( \\begin{array}{ccc|c}   1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"403\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Omdat <strong>de laatste regel allemaal 0 is<\/strong> , kunnen we deze verwijderen:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6aea469dceab08e6aa62571922eb2824_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0  \\end{array} \\right) \\ \\longrightarrow \\ \\left( \\begin{array}{ccc|c}   1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"376\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> En aangezien we een hele rij gevuld hadden met nullen, is dit een <strong>SCI.<\/strong><\/p>\n<p> We komen dus uit op het volgende systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-598c031f4cba5a865952a57ed46f0f95_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}   1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; -5 &amp; -14  \\end{array} \\right) \\ \\longrightarrow \\ \\left. \\begin{array}{r} x+y+2z=6 \\\\[2ex] y-5z=-14 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"357\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Wanneer het systeem een SCI is, is het noodzakelijk om de waarde van de parameter uit een onbekende te halen<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> . En <strong>we moeten het systeem oplossen op basis van deze parameter<\/strong><\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ff991fffb1b86160766a7edd85fcb4f2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{\\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> .<\/p>\n<div class=\"adsb30\" style=\" margin:px; text-align:\"><\/div>\n<p> Daarom kennen we de waarde toe van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> tot <em>z<\/em> :<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-67f77b7061fcc45e08104094a17ece7f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z = \\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"43\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> Hoewel we ook een andere onbekende hadden kunnen kiezen om de waarde van te nemen<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> .<\/p>\n<p> Nu isoleren we <em>y<\/em> uit de tweede vergelijking en laten we deze een functie zijn van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> : <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-adaf77dbbf7d0556e9d53db96af6bef9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y-5z=-14 \\ \\xrightarrow{z \\ = \\ \\lambda} \\  y-5(\\lambda )= -14\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"294\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0d7706e1d35463a9926dbc303cb4ab43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y-5\\lambda=-14\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"106\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-32e5a1e5b147d0473cc608b87aa89494_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y =-14+  5\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"105\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> En ten slotte verwijderen we <em>x<\/em> uit de eerste vergelijking en laten we deze ook als functie van staan<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> : <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-71ea139c729093d688e98a581fd329dc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x+y+2z=6 \\ \\xrightarrow{ y \\ = \\ -14 + 5\\lambda \\ ; \\ z \\ = \\  \\lambda } \\ x+ (-14+ 5\\lambda )+2(\\lambda ) = 6\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"484\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-aa2f4abf72f8d384d6767f8c05e565eb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x-14 +5\\lambda +2\\lambda = 6\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"164\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-25822a08cad8c0b1899177dbcdf85545_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=14- 5\\lambda -2\\lambda + 6\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"164\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7314023de779f37d222132402c95b418_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=20- 7\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"92\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p> De systeemoplossingen zijn daarom:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c67a3cb191f6fadc69e98891cd55b932_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{z = \\lambda} \\qquad \\bm{y =-14+ 5\\lambda } \\qquad \\bm{x=20 - 7\\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"311\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> Zoals u kunt zien, laten we, wanneer het systeem SCI is, de oplossingen afhankelijk van de parameter<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> . En onthoud dat het oneindige oplossingen heeft, omdat het afhankelijk is van de waarde die het nodig heeft<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> , zal de oplossing het een of het ander zijn.<\/p>\n<p> Voordat je verdergaat met de opgeloste oefeningen, moet je weten dat, hoewel we in dit artikel de methode van Gauss gebruiken, <a href=\"https:\/\/mathority.org\/nl\/stelling-van-de-rouche-frobenius-met-voorbeelden-en-opgeloste-oefeningen\/\">de stelling van Rouche<\/a> een andere manier is om stelsels van lineaire vergelijkingen te bespreken en op te lossen. Sterker nog, het wordt waarschijnlijk meer gebruikt.<\/p>\n<h2 class=\"wp-block-heading\"> Opgeloste oefeningen voor de bespreking van stelsels vergelijkingen met behulp van de Gauss-Jordan methode <\/h2>\n<div class=\"adsb30\" style=\" margin:12px; text-align:center\">\n<div id=\"ezoic-pub-ad-placeholder-118\"><\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"> Oefening 1<\/h3>\n<p> Bepaal om welk type systeem het gaat en los het volgende stelsel vergelijkingen op met behulp van de Gauss-methode: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-be4ba1bd1ce7452e66c5189d995d948c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x+y+2z=6 \\\\[2ex] 2x+3y+5z=8 \\\\[2ex] 3x+3y+6z=9  \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"152\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>zie oplossing<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Het eerste dat we moeten doen is de uitgebreide matrix van het systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b600f3fc0d79a06eb972dbacb673a780_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x+y+2z=6 \\\\[2ex] 2x+3y+5z=8 \\\\[2ex] 3x+3y+6z=9 \\end{array} \\right\\}  \\longrightarrow \\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex]  2 &amp; 3 &amp; 5 &amp; 8 \\\\[2ex] 3 &amp; 3 &amp; 6 &amp; 9 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"320\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu moeten we alle getallen onder de hoofdarray 0 maken.<\/p>\n<p class=\"has-text-align-left\"> We voeren daarom rijbewerkingen uit om de laatste twee termen van de eerste kolom te annuleren:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a1d832d5bb115666614ae96822c360eb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex]  2 &amp; 3 &amp; 5 &amp; 8 \\\\[2ex]3 &amp; 3 &amp; 6 &amp; 9 \\end{array} \\right) \\begin{array}{c} \\\\[2ex] \\xrightarrow{f_2 - 2f_1} \\\\[2ex] \\xrightarrow{f_3 - 3f_1}&amp; \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; 1 &amp; 2 &amp; 6 \\\\[2ex] 0 &amp; 1 &amp; 1 &amp; -4 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; -9 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"344\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> We hebben een rij van de matrix verkregen die bestaat uit drie nullen gevolgd door een getal. Het is dus een <strong>IS<\/strong> (Incompatibel Systeem) en het systeem <strong>heeft geen oplossing.<\/strong><\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> Oefening 2<\/h3>\n<p> Bepaal welk type systeem het is en vind de oplossing voor het volgende stelsel vergelijkingen met behulp van de Gauss-methode: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7f5aba495f2c6a301e923ee3c6238012_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x-2y+3z=1 \\\\[2ex] -2x+5y-z=5 \\\\[2ex] -x+3y+2z=6 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"156\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>zie oplossing<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Het eerste dat we moeten doen is de uitgebreide matrix van het systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f8bb5e5ab85946bddad72067fe17d937_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x-2y+3z=1 \\\\[2ex] -2x+5y-z=5 \\\\[2ex] -x+3y+2z=6  \\end{array} \\right\\}  \\longrightarrow \\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex]  -2 &amp; 5 &amp; -1 &amp; 5 \\\\[2ex] -1 &amp; 3 &amp; 2 &amp; 6 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"365\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu moeten we alle getallen onder de hoofdarray 0 maken.<\/p>\n<p class=\"has-text-align-left\"> We voeren daarom rijbewerkingen uit om de laatste twee termen van de eerste kolom te annuleren:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-83e48becaaa6683719ac57eb7d118943_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex]  -2 &amp; 5 &amp; -1 &amp; 5 \\\\[2ex] -1 &amp; 3 &amp; 2 &amp; 6 \\end{array} \\right) \\begin{array}{c} \\\\[2ex] \\xrightarrow{f_2 + 2f_1} \\\\[2ex] \\xrightarrow{f_3 + f_1}  \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"385\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Laten we nu proberen het laatste element uit de tweede kolom te verwijderen:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-16a1afc0eb224ee5f05c9e313586854d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7  \\end{array} \\right) \\begin{array}{c} \\\\[2ex]  \\\\[2ex] \\xrightarrow{f_3 -f_2} \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"351\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Maar we krijgen een hele rij nullen. Dit is dus een <strong>SCI<\/strong> en het systeem heeft <strong>oneindig veel oplossingen.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Maar omdat het een ICS is, kunnen we het systeem oplossen op basis van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> . We schrappen daarom de 0-regel:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5c838c5f1b229d4c8a43ac9ddd8e3629_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0 \\end{array} \\right) \\ \\longrightarrow \\ \\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"331\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> We drukken de matrix nu uit in de vorm van een stelsel van vergelijkingen met onbekenden:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b3fd941d33fec646d16b8181430c9986_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -2 &amp; 3 &amp; 1 \\\\[2ex] 0 &amp; 1 &amp; 5 &amp; 7  \\end{array} \\right) \\ \\longrightarrow \\ \\left. \\begin{array}{r} 1x-2y+3z=1 \\\\[2ex] 1y+5z=7 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"352\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Wij geven de waarde van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> Voor<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bc71729520f0274771a717ce2c320783_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z :\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"18\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-abcd65ca2a131b846dcf56a5af3e8288_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{z = \\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"43\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Wij vervangen de waarde van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4586e340cb83d5b642972e97a288fec2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> in de tweede vergelijking om de waarde van te vinden <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a70e6a4387a816f153e8597195143f54_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y :\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"18\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ef9d3e908b97a8fa0fc67ffbc41e1b9a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"1y+5z=7 \\ \\xrightarrow{z \\ = \\ \\lambda} \\ 1y+5(\\lambda )=7\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"265\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c7b130da4f2704ffbf775f40ee7a3d5d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y+5\\lambda =7\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"83\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-88c6088a22d57673e995b351f06c1e0d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{y=7-5\\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"82\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> En we doen hetzelfde met de eerste vergelijking: we vervangen de waarden van de andere onbekenden en we wissen <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0a2431573b3a6b42537cbb0647aae6db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x :\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"19\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a42277e0281993d410553779736ed6ee_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"1x-2y+3z=1 \\ \\xrightarrow{y \\ = \\ 7-5\\lambda \\ ; \\ z \\ = \\ \\lambda} \\ 1x-2(7-5\\lambda )+3(\\lambda )=1\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"477\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8160e68cd793ee02ea9bdf693739d9de_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x-14+10\\lambda+3\\lambda=1\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"172\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2d0cc29914223f805421366e5a6163e8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=1+14-10\\lambda-3\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"172\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ba56c9f5b4e3df85c8487bbf22c468f8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=15-13\\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"101\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> De oplossing van het stelsel vergelijkingen is daarom: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1457d59269c1eecd481f141507f7ca94_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=15-13\\lambda} \\qquad \\bm{y=7-5\\lambda} \\qquad \\bm{z = \\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"298\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<div class=\"adsb30\" style=\" margin:12px; text-align:center\">\n<div id=\"ezoic-pub-ad-placeholder-119\"><\/div>\n<\/div>\n<h3 class=\"wp-block-heading\"> Oefening 3<\/h3>\n<p> Zoek welk type systeem het is en los het volgende stelsel vergelijkingen op met de Gauss-methode: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b04370b42854e53c650ca0eae14aadb5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} 4x-4y+z=-4 \\\\[2ex] x+3y+z=2 \\\\[2ex] x+5y+2z=6 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"157\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>zie oplossing<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Het eerste dat we moeten doen is de uitgebreide matrix van het systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ff2c7644e19fdf405f3c5c42ffc0ee98_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} 4x-4y+z=-4 \\\\[2ex] x+3y+z=2 \\\\[2ex] x+5y+2z=6\\end{array} \\right\\}  \\longrightarrow \\left( \\begin{array}{ccc|c} 4 &amp; -4 &amp; 1 &amp; -4 \\\\[2ex]  1 &amp; 3 &amp; 1 &amp; 2 \\\\[2ex] 1 &amp; 5 &amp; 2 &amp; 6 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"352\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Om de Gauss-methode toe te passen is het eenvoudiger als het eerste getal op de eerste regel een 1 is. We zullen daarom de volgorde van regels 1 en 2 veranderen:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-471d89605d4bf6ddef1896a8fbe4c5ea_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 4 &amp; -4 &amp; 1 &amp; -4 \\\\[2ex]  1 &amp; 3 &amp; 1 &amp; 2 \\\\[2ex] 1 &amp; 5 &amp; 2 &amp; 6 \\end{array} \\right) \\begin{array}{c} \\xrightarrow{f_1 \\rightarrow f_2} \\\\[2ex] \\xrightarrow{f_2 \\rightarrow f_1} \\\\[2ex] &amp; \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 4 &amp; -4 &amp; 1 &amp; -4 \\\\[2ex] 1 &amp; 5 &amp; 2 &amp; 6  \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"101\" width=\"381\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu moeten we alle getallen onder de hoofdarray 0 maken.<\/p>\n<p class=\"has-text-align-left\"> We voeren daarom rijbewerkingen uit om de laatste twee termen van de eerste kolom te annuleren:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f4d5cbc50b87927077018175c4678e90_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}  1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 4 &amp; -4 &amp; 1 &amp; -4 \\\\[2ex] 1 &amp; 5 &amp; 2 &amp; 6 \\end{array} \\right) \\begin{array}{c} \\\\[2ex] \\xrightarrow{f_2 - 4f_1} \\\\[2ex] \\xrightarrow{f_3 -f_1} \\end{array} \\left( \\begin{array}{ccc|c}  1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 0 &amp; -16 &amp; -3 &amp; -12 \\\\[2ex] 0 &amp; 2 &amp; 1 &amp; 4 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"417\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu converteren we het laatste element van de tweede kolom naar nul:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9013720883fd719e2bd0779bfbaa7a9f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 0 &amp; -16 &amp; -3 &amp; -12 \\\\[2ex] 0 &amp; 2 &amp; 1 &amp; 4   \\end{array} \\right) \\begin{array}{c} \\\\[2ex]  \\\\[2ex] \\xrightarrow{8f_3 + f_2} \\end{array} \\left( \\begin{array}{ccc|c}1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 0 &amp; -16 &amp; -3 &amp; -12 \\\\[2ex] 0 &amp; 0 &amp; 5 &amp; 20 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"448\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Dit systeem is <strong>SCD<\/strong> , omdat het ons is gelukt de matrix te verschuiven en de laatste rij van het type is<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5d701f6e0afb7579229228d226ee2186_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"(0 \\ 0 \\ n \\ | \\ m)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"85\" style=\"vertical-align: -5px;\"><\/p>\n<p> . Daarom zal het <strong>een unieke oplossing hebben.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Zodra alle getallen onder de hoofddiagonaal 0 zijn, kunnen we nu het stelsel vergelijkingen oplossen. Om dit te doen, drukken we de matrix opnieuw uit in de vorm van een stelsel van vergelijkingen met onbekenden:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0f0433738d5d0a22bdd3b04dbd44fd1e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; 3 &amp; 1 &amp; 2  \\\\[2ex] 0 &amp; -16 &amp; -3 &amp; -12 \\\\[2ex] 0 &amp; 0 &amp; 5 &amp; 20 \\end{array} \\right) \\ \\longrightarrow \\ \\left. \\begin{array}{r} x+3y+1z=2 \\\\[2ex] -16y-3z=-12 \\\\[2ex] 5z=20 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"402\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> En we lossen de onbekenden van de vergelijkingen van onder naar boven op. We lossen eerst de laatste vergelijking op: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a71cace2e71d01970e94195b1c2ffe8b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"5z=20\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"60\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f4bbdadf2ee34baa77ffe1e658850927_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{z}=\\cfrac{20}{5} = \\bm{4}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"85\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu vervangen we de waarde van z in de tweede vergelijking om de waarde van y te vinden: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-77c84cccb610ceeb681601f6a4805fd5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-16y-3z=-12 \\ \\xrightarrow{z \\ = \\ 4} \\ -16y-3(4)=-12\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"352\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-72b89c805a36e7f423b722a176cdf7d8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-16y-12=-12\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"134\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-41071516425cd346030975b58a32ebd4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-16y=-12+12\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"134\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b8d50f9873947a16018789af09740e00_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-16y=0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"72\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-30a6ccf8b222af4383b58c7f5fc166b2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{y}=\\cfrac{0}{-16}= \\bm{0}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"99\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> En we doen hetzelfde met de eerste vergelijking: we vervangen de waarden van de andere onbekenden en we lossen op voor x: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6f5523088917941892ceaefd1f6ce733_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x+3y+1z=2  \\ \\xrightarrow{y \\ = \\ 0 \\ ; \\ z \\ = \\ 4} \\ x+3(0)+1(4)=2\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"391\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-88d555fb46e6615b9885d98abc17a0ef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x+0+4=2\" title=\"Rendered by QuickLaTeX.com\" height=\"14\" width=\"103\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2a1137f222574a52be67af062fadde9f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=2-4\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"73\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6505a1b32f86c9deb3ab0716f13c3949_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=-2}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"56\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> De oplossing van het stelsel vergelijkingen is daarom: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6ac2b4e4cbdb1d0f8b4f92bfd5d6bb33_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=-2} \\qquad \\bm{y=0} \\qquad \\bm{z=4}\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"211\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">Oefening 4<\/h3>\n<p> Bepaal welk type systeem het is en los het volgende stelsel vergelijkingen op met de Gauss-methode: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4e8a133547b4719d7833a792550fd322_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x-y+4z=2 \\\\[2ex] -3x-3y+3z=7 \\\\[2ex] -2x-4y+7z=9 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"165\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E3F2FD boto_ver_solucion\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E3F2FD\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"> <strong>zie oplossing<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Het eerste dat we moeten doen is de uitgebreide matrix van het systeem:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-cc41f78456a922a0fbff419d336b0b46_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left. \\begin{array}{r} x-y+4z=2 \\\\[2ex] -3x-3y+3z=7 \\\\[2ex] -2x-4y+7z=9  \\end{array} \\right\\}  \\longrightarrow \\left( \\begin{array}{ccc|c}1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex]  -3 &amp; -3 &amp; 3 &amp; 7 \\\\[2ex] -2 &amp; -4 &amp; 7 &amp; 9\\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"360\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Nu moeten we alle getallen onder de hoofdarray 0 maken.<\/p>\n<p class=\"has-text-align-left\"> We voeren daarom rijbewerkingen uit om de laatste twee termen van de eerste kolom te annuleren:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ff92912f653c6aca7ceb7c990c9635a3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex]  -3 &amp; -3 &amp; 3 &amp; 7 \\\\[2ex] -2 &amp; -4 &amp; 7 &amp; 9\\end{array} \\right) \\begin{array}{c} \\\\[2ex] \\xrightarrow{f_2 + 3f_1} \\\\[2ex] \\xrightarrow{f_3 + 2f_1} \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"389\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Laten we nu proberen het laatste element uit de tweede kolom te verwijderen:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3c6904a64a721f3a92bef8c6b7d713cf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c}1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\end{array} \\right) \\begin{array}{c} \\\\[2ex]  \\\\[2ex] \\xrightarrow{f_3 -1f_2} \\end{array} \\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"98\" width=\"393\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Maar we krijgen een hele rij nullen. Dit is dus een <strong>SCI<\/strong> en het systeem heeft <strong>oneindig veel oplossingen.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Maar omdat het een ICS is, kunnen we het systeem oplossen op basis van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> . We schrappen daarom de 0-regel:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6d856e2c1246f3629d68a7bcd3cd759a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13\\\\[2ex] 0 &amp; 0 &amp; 0 &amp; 0 \\end{array} \\right) \\ \\longrightarrow \\ \\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13 \\end{array} \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"97\" width=\"366\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> We drukken de matrix nu uit in de vorm van een stelsel van vergelijkingen met onbekenden:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a4cf1265bfc12f94580de183230c8b7c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\begin{array}{ccc|c} 1 &amp; -1 &amp; 4 &amp; 2 \\\\[2ex] 0 &amp; -6 &amp; 15 &amp; 13 \\end{array} \\right) \\ \\longrightarrow \\ \\left. \\begin{array}{r} 1x-1y+4z=2 \\\\[2ex] -6y+15z=13 \\end{array} \\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"370\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Wij geven de waarde van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2b5c45836864531b8e37025dabadd24a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"10\" style=\"vertical-align: 0px;\"><\/p>\n<p> Voor<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bc71729520f0274771a717ce2c320783_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z :\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"18\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-abcd65ca2a131b846dcf56a5af3e8288_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{z = \\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"43\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Wij vervangen de waarde van<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4586e340cb83d5b642972e97a288fec2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"z\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p> in de tweede vergelijking om de waarde van te vinden <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a70e6a4387a816f153e8597195143f54_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y :\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"18\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-505fd2d7f1d3de194527308d053c4588_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-6y+15z=13 \\ \\xrightarrow{z \\ = \\ \\lambda} \\ -6y+15(\\lambda )=13\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"328\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-28edac5e241772779578f73cf500c7ac_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-6y+15\\lambda =13\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"122\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4bd3cf3776b4e1ef1495979ad265bbd3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-6y =13-15\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"122\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-077278683cc8adf383b53504ee01f6af_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{y =} \\mathbf{\\cfrac{13-15\\lambda }{-6}}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"103\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> En we doen hetzelfde met de eerste vergelijking: we vervangen de waarden van de andere onbekenden en we wissen <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0a2431573b3a6b42537cbb0647aae6db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x :\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"19\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5e5a39e7562e2bf3d3b969f5db5294f6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"1x-1y+4z=2 \\ \\xrightarrow{y \\ = \\ \\frac{13-15\\lambda }{-6} \\ ; \\ z \\ = \\ \\lambda} \\ 1x-1\\left(\\cfrac{13-15\\lambda }{-6} \\right)+4(\\lambda)=2\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"526\" style=\"vertical-align: -23px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0dde1c51e85f2547d89aa435671f9f80_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x-\\cfrac{13-15\\lambda }{-6} +4\\lambda=2\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"174\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3493f037522f90054e681e659ebe4a43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=2+\\cfrac{13-15\\lambda }{-6} -4\\lambda\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"174\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> We hebben een som met breuken. Daarom herleiden we alle termen tot een gemeenschappelijke noemer: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-47d211adb8dac8be1f446457d37313f6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-6 \\cdot 2}{-6}+\\cfrac{13-15\\lambda }{-6} -\\cfrac{-6 \\cdot 4 \\lambda}{-6}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"266\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9a5bf6ea2922cec38e35f9448285dfa9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-12}{-6}+\\cfrac{13-15\\lambda }{-6} -\\cfrac{-24 \\lambda}{-6}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"240\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> Omdat ze nu allemaal dezelfde noemer hebben, kunnen we ze in \u00e9\u00e9n breuk groeperen:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-21d28bc7a89872df5d1bfbcb2889898c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-12+13-15\\lambda-(-24 \\lambda) }{-6}\" title=\"Rendered by QuickLaTeX.com\" height=\"40\" width=\"242\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> En tenslotte werken we met de teller: <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9d1cba1b643fbb1bfed40441b1c51c34_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-12+13-15\\lambda+24 \\lambda }{-6}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"215\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e99f60f5d3036dcf3151e112a16bbfdc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=}\\mathbf{\\cfrac{1+9\\lambda }{-6} }\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"84\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> De oplossing van het stelsel vergelijkingen is daarom:<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2c43d0a3db9ba3aabcd68aafb4c781cd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{x=15-13\\lambda} \\qquad \\bm{y =} \\mathbf{\\cfrac{13-15\\lambda }{-6}} \\qquad \\bm{z = \\lambda}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"318\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>In deze sectie zullen we zien hoe we een stelsel vergelijkingen kunnen bespreken en oplossen volgens de Gauss-Jordan-methode . Dat wil zeggen, bepaal of het een bepaald compatibel systeem (DCS), een onbepaald compatibel systeem (ICS) of een incompatibel systeem is. Daarnaast vindt u voorbeelden en opgeloste oefeningen zodat u de concepten perfect kunt oefenen en &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\"> <span class=\"screen-reader-text\">Bespreking van stelsels van vergelijkingen met behulp van de gaussische methode<\/span> Lees meer &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[41],"tags":[],"class_list":["post-343","post","type-post","status-publish","format-standard","hentry","category-wiskundige-verklaringen"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Bespreking van stelsels vergelijkingen met behulp van de Gauss-methode -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\" \/>\n<meta property=\"og:locale\" content=\"nl_NL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Bespreking van stelsels vergelijkingen met behulp van de Gauss-methode -\" \/>\n<meta property=\"og:description\" content=\"In deze sectie zullen we zien hoe we een stelsel vergelijkingen kunnen bespreken en oplossen volgens de Gauss-Jordan-methode . 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Daarnaast vindt u voorbeelden en opgeloste oefeningen zodat u de concepten perfect kunt oefenen en &hellip; Bespreking van stelsels van vergelijkingen met behulp van de gaussische methode Lees meer &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-06T16:09:27+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e51d504887586898a4b88863a128c8e2_l3.png\" \/>\n<meta name=\"author\" content=\"Redactioneel Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Geschreven door\" \/>\n\t<meta name=\"twitter:data1\" content=\"Redactioneel Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Geschatte leestijd\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\",\"url\":\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\",\"name\":\"Bespreking van stelsels vergelijkingen met behulp van de Gauss-methode -\",\"isPartOf\":{\"@id\":\"https:\/\/mathority.org\/nl\/#website\"},\"datePublished\":\"2023-07-06T16:09:27+00:00\",\"dateModified\":\"2023-07-06T16:09:27+00:00\",\"author\":{\"@id\":\"https:\/\/mathority.org\/nl\/#\/schema\/person\/19b550cef1a9fbd238be112b7b7bbf64\"},\"breadcrumb\":{\"@id\":\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/#breadcrumb\"},\"inLanguage\":\"nl-NL\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/mathority.org\/nl\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Bespreking van stelsels van vergelijkingen met behulp van de gaussische methode\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/mathority.org\/nl\/#website\",\"url\":\"https:\/\/mathority.org\/nl\/\",\"name\":\"\",\"description\":\"Waar nieuwsgierigheid en berekening elkaar ontmoeten!\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/mathority.org\/nl\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"nl-NL\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/mathority.org\/nl\/#\/schema\/person\/19b550cef1a9fbd238be112b7b7bbf64\",\"name\":\"Redactioneel Team\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"nl-NL\",\"@id\":\"https:\/\/mathority.org\/nl\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/8a35e4c8616d1c34c03ca02862b580f4372c5650665668489db53a09579bbc4f?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/8a35e4c8616d1c34c03ca02862b580f4372c5650665668489db53a09579bbc4f?s=96&d=mm&r=g\",\"caption\":\"Redactioneel Team\"},\"sameAs\":[\"http:\/\/mathority.org\/nl\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Bespreking van stelsels vergelijkingen met behulp van de Gauss-methode -","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mathority.org\/nl\/bespreking-van-vergelijkingssystemen-met-behulp-van-de-gauss-methode-met-opgeloste-oefeningen\/","og_locale":"nl_NL","og_type":"article","og_title":"Bespreking van stelsels vergelijkingen met behulp van de Gauss-methode -","og_description":"In deze sectie zullen we zien hoe we een stelsel vergelijkingen kunnen bespreken en oplossen volgens de Gauss-Jordan-methode . Dat wil zeggen, bepaal of het een bepaald compatibel systeem (DCS), een onbepaald compatibel systeem (ICS) of een incompatibel systeem is. 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