{"id":299,"date":"2023-07-06T16:09:27","date_gmt":"2023-07-06T16:09:27","guid":{"rendered":"https:\/\/mathority.org\/id\/pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian\/"},"modified":"2023-07-06T16:09:27","modified_gmt":"2023-07-06T16:09:27","slug":"pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian","status":"publish","type":"post","link":"https:\/\/mathority.org\/id\/pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian\/","title":{"rendered":"Pembahasan sistem persamaan menggunakan metode gaussian"},"content":{"rendered":"<p>Pada bagian ini kita akan melihat <strong>bagaimana membahas dan menyelesaikan sistem persamaan dengan metode Gauss-Jordan<\/strong> . Artinya, tentukan apakah sistem tersebut merupakan sistem yang kompatibel (DCS), sistem yang kompatibel tidak tentu (ICS), atau sistem yang tidak kompatibel. Selain itu, Anda akan menemukan contoh dan latihan yang diselesaikan sehingga Anda dapat mempraktikkan dan mengasimilasi konsep dengan sempurna.<\/p>\n<p> Untuk memahami apa yang akan kami jelaskan selanjutnya, penting bagi Anda untuk mengetahui cara menyelesaikan sistem menggunakan <a href=\"https:\/\/mathority.org\/id\" target=\"_blank\" aria-label=\"undefined (abre en una nueva pesta\u00f1a)\" rel=\"noreferrer noopener\">metode Gauss<\/a> , jadi kami menyarankan Anda untuk melihatnya sebelum melanjutkan.<\/p>\n<h2 class=\"wp-block-heading\"> Sistem yang kompatibel ditentukan dengan metode Gauss<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Selama baris terakhir matriks Gaussian adalah<\/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> , menjadi<\/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> Dan<\/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> dua angka apa pun, ini adalah <strong>SCD<\/strong> (System Kompatibel Ditentukan). Oleh karena itu, sistem <strong>memiliki solusi unik<\/strong> .<\/p>\n<p> Sebagian besar sistem adalah SCD.<\/p>\n<h3 class=\"wp-block-heading\"> Contoh:<\/h3>\n<p> Misalnya, kami memiliki sistem ini:<\/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\"> Yang matriksnya diperluas adalah:<\/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> Untuk menyelesaikan sistem ini kita perlu mengoperasikan baris-baris matriks dan mengubah semua elemen di bawah diagonal utama menjadi 0. Jadi dari baris kedua kita kurangi baris pertama dan dari baris ketiga kita kurangi baris pertama dikalikan 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> Setelah semua bilangan di bawah diagonal utama adalah 0, kita kembali meneruskan sistem ke dalam bentuk persamaan:<\/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> Jadi sistem ini adalah <strong>SCD<\/strong> , karena matriksnya digeser dan baris terakhirnya bertipe<\/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> . Oleh karena itu, kami menyelesaikannya seperti biasa: dengan menghilangkan hal-hal yang tidak diketahui dari persamaan dari bawah ke atas.<\/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>Sekarang kita tahu z, kita masukkan nilainya ke persamaan kedua untuk mencari nilai<\/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> Dan terakhir, kita melakukan hal yang sama dengan persamaan pertama: kita mengganti nilai-nilai yang tidak diketahui lainnya dan menyelesaikannya<\/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> Oleh karena itu, penyelesaian sistem persamaan tersebut adalah:<\/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\"> Sistem yang tidak kompatibel menurut metode Gauss<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Ketika dalam matriks Gauss kita memiliki baris dengan tiga angka 0 berturut-turut dan sebuah angka<\/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> , ini adalah <strong>IS<\/strong> (Sistem Tidak Kompatibel), dan oleh karena itu, sistem <strong>tidak memiliki solusi<\/strong> .<\/p>\n<h3 class=\"estil_titol_H3 wp-block-heading\"> Contoh:<\/h3>\n<p> Misalnya, bayangkan setelah mengoperasikan matriks Gaussian suatu sistem, kita mendapatkan:<\/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> Seperti baris terakhir<\/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> , yaitu tiga angka 0 yang diikuti angka di akhir, merupakan <strong>IF<\/strong> (Sistem Tidak Kompatibel) dan oleh karena itu, <strong>sistem tidak mempunyai solusi<\/strong> .<\/p>\n<p> Meskipun tidak perlu mengetahuinya, di bawah ini Anda akan melihat mengapa tidak ada solusinya.<\/p>\n<p> Jika kita mengambil baris terakhir, kita akan mendapatkan persamaan ini:<\/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> Persamaan ini tidak akan pernah terpenuhi, karena berapa pun nilai <em>z<\/em> , mengalikannya dengan 0 tidak akan pernah menghasilkan 2 (bilangan apa pun yang dikalikan 0 selalu menghasilkan 0). Dan karena persamaan ini tidak akan pernah terpenuhi, sistem tidak mempunyai solusi.<\/p>\n<h2 class=\"wp-block-heading\"> Sistem yang kompatibel belum ditentukan dengan metode Gaussian<\/h2>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"> Setiap kali baris matriks Gaussian terisi 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> , ini adalah <strong>SCI<\/strong> (Sistem Kompatibel Tak Tertentu), dan, oleh karena itu, sistem tersebut <strong>memiliki solusi tak terbatas<\/strong> .<\/p>\n<p> Mari kita lihat contoh cara menyelesaikan ICS:<\/p>\n<h3 class=\"wp-block-heading\"> Contoh:<\/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> Seperti biasa, pertama-tama kita membuat <strong>matriks diperluas dari sistem<\/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> Sekarang kita ingin semua bilangan di bawah diagonal utama menjadi 0. Jadi, pada baris kedua kita tambahkan baris pertama dikalikan -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-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> Untuk mengubah 3 menjadi 0, pada baris ketiga kita tambahkan baris pertama dikalikan -3:<\/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> Untuk mengubah 1 pada baris terakhir menjadi 0, pada baris ketiga kita tambahkan baris kedua dikalikan -1:<\/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> Karena <strong>baris terakhir semuanya 0<\/strong> , kita dapat menghapusnya:<\/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> Dan karena seluruh baris kita diisi dengan angka 0, ini adalah <strong>SCI.<\/strong><\/p>\n<p> Oleh karena itu kami berakhir dengan sistem berikut:<\/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\"> Jika sistemnya adalah SCI, maka perlu mengambil nilai parameter dari yang tidak diketahui<\/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> . Dan <strong>kita perlu menyelesaikan sistem berdasarkan parameter ini<\/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> Oleh karena itu, kami menetapkan nilai<\/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> ke <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> Meskipun kita juga bisa memilih hal lain yang tidak diketahui untuk dijadikan nilai<\/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> Sekarang kita isolasi <em>y<\/em> dari persamaan kedua dan biarkan menjadi fungsi dari<\/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> Dan terakhir kita hapus <em>x<\/em> dari persamaan pertama dan biarkan juga sebagai fungsi dari<\/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> Oleh karena itu solusi sistemnya adalah:<\/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> Seperti yang Anda lihat, ketika sistemnya adalah SCI, kami membiarkan solusinya bergantung pada parameternya<\/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> . Dan ingatlah bahwa ia memiliki solusi tak terbatas, karena bergantung pada nilai yang dibutuhkan<\/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> , solusinya adalah salah satunya.<\/p>\n<p> Sebelum melanjutkan ke latihan penyelesaian, Anda harus tahu bahwa meskipun dalam artikel ini kami menggunakan metode Gauss, cara lain untuk membahas dan menyelesaikan sistem persamaan linier adalah <a href=\"https:\/\/mathority.org\/id\/teorema-de-rouche-frobenius-dengan-contoh-dan-latihan-yang-diselesaikan\/\">teorema Rouche<\/a> . Faktanya, ini mungkin lebih banyak digunakan.<\/p>\n<h2 class=\"wp-block-heading\"> Latihan soal pembahasan sistem persamaan menggunakan metode Gauss-Jordan <\/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\"> Latihan 1<\/h3>\n<p> Tentukan jenis sistem apa yang terlibat dan selesaikan sistem persamaan berikut menggunakan metode Gauss: <\/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>lihat solusi<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Hal pertama yang perlu kita lakukan adalah matriks yang diperluas dari sistem:<\/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\"> Sekarang kita perlu membuat semua angka di bawah array utama menjadi 0.<\/p>\n<p class=\"has-text-align-left\"> Oleh karena itu kami melakukan operasi baris untuk membatalkan dua suku terakhir dari kolom pertama:<\/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\"> Kami memperoleh baris matriks yang terdiri dari tiga angka 0 diikuti dengan angka. Oleh karena itu, ini adalah <strong>IS<\/strong> (Sistem Tidak Kompatibel) dan sistem <strong>tidak memiliki solusi.<\/strong><\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\"> Latihan 2<\/h3>\n<p> Tentukan jenis sistemnya dan carilah penyelesaian sistem persamaan berikut dengan menggunakan metode Gauss: <\/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>lihat solusi<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Hal pertama yang perlu kita lakukan adalah matriks yang diperluas dari sistem:<\/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\"> Sekarang kita perlu membuat semua angka di bawah array utama menjadi 0.<\/p>\n<p class=\"has-text-align-left\"> Oleh karena itu kami melakukan operasi baris untuk membatalkan dua suku terakhir dari kolom pertama:<\/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\"> Sekarang mari kita coba menghapus elemen terakhir dari kolom kedua:<\/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\"> Tapi kita mendapatkan seluruh baris 0. Jadi ini adalah <strong>SCI<\/strong> dan sistemnya memiliki <strong>banyak sekali solusi.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Tapi karena ini adalah ICS, kita bisa menyelesaikan sistemnya berdasarkan<\/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> . Oleh karena itu kami menghapus baris 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-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\"> Sekarang kita nyatakan matriks tersebut dalam bentuk sistem persamaan yang tidak diketahui:<\/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\"> Kami memberi nilai<\/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> Untuk<\/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\"> Kami mengganti nilai<\/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> dalam persamaan kedua untuk mencari nilai <\/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\"> Dan kita melakukan hal yang sama dengan persamaan pertama: kita mengganti nilai-nilai yang tidak diketahui lainnya dan menghapusnya <\/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\"> Oleh karena itu, penyelesaian sistem persamaan tersebut adalah: <\/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\"> Latihan 3<\/h3>\n<p> Temukan jenis sistemnya dan selesaikan sistem persamaan berikut dengan metode Gauss: <\/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>lihat solusi<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Hal pertama yang perlu kita lakukan adalah matriks yang diperluas dari sistem:<\/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\"> Untuk menerapkan metode Gauss, akan lebih mudah jika bilangan pertama pada baris pertama adalah 1. Oleh karena itu, kita akan mengubah urutan baris 1 dan 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-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\"> Sekarang kita perlu membuat semua angka di bawah array utama menjadi 0.<\/p>\n<p class=\"has-text-align-left\"> Oleh karena itu kami melakukan operasi baris untuk membatalkan dua suku terakhir dari kolom pertama:<\/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\"> Sekarang kita mengubah elemen terakhir kolom kedua menjadi nol:<\/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\"> Sistem ini adalah <strong>SCD<\/strong> , karena kami berhasil menggeser matriks dan baris terakhir bertipe<\/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> . Oleh karena itu, pihaknya akan memiliki <strong>solusi unik.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Setelah semua bilangan di bawah diagonal utama adalah 0, sekarang kita dapat menyelesaikan sistem persamaannya. Untuk melakukan ini, kita nyatakan kembali matriks tersebut dalam bentuk sistem persamaan dengan yang tidak diketahui:<\/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\"> Dan kami memecahkan persamaan yang tidak diketahui dari bawah ke atas. Pertama-tama kita selesaikan persamaan terakhir: <\/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\"> Sekarang kita substitusikan nilai z ke dalam persamaan kedua untuk mencari nilai y: <\/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\"> Dan kita melakukan hal yang sama dengan persamaan pertama: kita mengganti nilai-nilai yang tidak diketahui lainnya dan menyelesaikan 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\"> Oleh karena itu, penyelesaian sistem persamaan tersebut adalah: <\/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\">Latihan 4<\/h3>\n<p> Tentukan jenis sistemnya dan selesaikan sistem persamaan berikut dengan metode Gauss: <\/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>lihat solusi<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\"> Hal pertama yang perlu kita lakukan adalah matriks yang diperluas dari sistem:<\/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\"> Sekarang kita perlu membuat semua angka di bawah array utama menjadi 0.<\/p>\n<p class=\"has-text-align-left\"> Oleh karena itu kami melakukan operasi baris untuk membatalkan dua suku terakhir dari kolom pertama:<\/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\"> Sekarang mari kita coba menghapus elemen terakhir dari kolom kedua:<\/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\"> Tapi kita mendapatkan seluruh baris 0. Jadi ini adalah <strong>SCI<\/strong> dan sistemnya memiliki <strong>banyak sekali solusi.<\/strong><\/p>\n<p class=\"has-text-align-left\"> Tapi karena ini adalah ICS, kita bisa menyelesaikan sistemnya berdasarkan<\/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> . Oleh karena itu kami menghapus baris 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-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\"> Sekarang kita nyatakan matriks tersebut dalam bentuk sistem persamaan yang tidak diketahui:<\/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\"> Kami memberi nilai<\/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> Untuk<\/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\"> Kami mengganti nilai<\/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> dalam persamaan kedua untuk mencari nilai <\/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\"> Dan kita melakukan hal yang sama dengan persamaan pertama: kita mengganti nilai-nilai yang tidak diketahui lainnya dan menghapusnya <\/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\"> Kami memiliki jumlah dengan pecahan. Oleh karena itu, kami mereduksi semua suku menjadi penyebut yang sama: <\/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\"> Karena sekarang semuanya mempunyai penyebut yang sama, kita dapat mengelompokkannya menjadi satu pecahan:<\/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\"> Dan akhirnya kami mengoperasikan pembilangnya: <\/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\"> Oleh karena itu, penyelesaian sistem persamaan tersebut adalah:<\/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>Pada bagian ini kita akan melihat bagaimana membahas dan menyelesaikan sistem persamaan dengan metode Gauss-Jordan . Artinya, tentukan apakah sistem tersebut merupakan sistem yang kompatibel (DCS), sistem yang kompatibel tidak tentu (ICS), atau sistem yang tidak kompatibel. Selain itu, Anda akan menemukan contoh dan latihan yang diselesaikan sehingga Anda dapat mempraktikkan dan mengasimilasi konsep dengan &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/id\/pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian\/\"> <span class=\"screen-reader-text\">Pembahasan sistem persamaan menggunakan metode gaussian<\/span> Selengkapnya &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-299","post","type-post","status-publish","format-standard","hentry","category-penjelasan-matematis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Pembahasan sistem persamaan menggunakan metode Gaussian -<\/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\/id\/pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian\/\" \/>\n<meta property=\"og:locale\" content=\"id_ID\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pembahasan sistem persamaan menggunakan metode Gaussian -\" \/>\n<meta property=\"og:description\" content=\"Pada bagian ini kita akan melihat bagaimana membahas dan menyelesaikan sistem persamaan dengan metode Gauss-Jordan . Artinya, tentukan apakah sistem tersebut merupakan sistem yang kompatibel (DCS), sistem yang kompatibel tidak tentu (ICS), atau sistem yang tidak kompatibel. Selain itu, Anda akan menemukan contoh dan latihan yang diselesaikan sehingga Anda dapat mempraktikkan dan mengasimilasi konsep dengan &hellip; Pembahasan sistem persamaan menggunakan metode gaussian Selengkapnya &raquo;\" \/>\n<meta property=\"og:url\" content=\"https:\/\/mathority.org\/id\/pembahasan-sistem-persamaan-menggunakan-metode-gauss-dengan-latihan-penyelesaian\/\" \/>\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=\"Tim Mathority\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Ditulis oleh\" \/>\n\t<meta name=\"twitter:data1\" content=\"Tim Mathority\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimasi waktu membaca\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 menit\" \/>\n<script 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