{"id":232,"date":"2023-07-10T20:13:15","date_gmt":"2023-07-10T20:13:15","guid":{"rendered":"https:\/\/mathority.org\/ja\/%e4%b8%80%e8%87%b4%e7%b7%9a%e3%81%ae%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b\/"},"modified":"2023-07-10T20:13:15","modified_gmt":"2023-07-10T20:13:15","slug":"%e4%b8%80%e8%87%b4%e7%b7%9a%e3%81%ae%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/%e4%b8%80%e8%87%b4%e7%b7%9a%e3%81%ae%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b\/","title":{"rendered":"\u4e00\u81f4\u7dda"},"content":{"rendered":"<p>\u3053\u3053\u3067\u306f\u3001\u4e00\u81f4\u3059\u308b\u7dda\u306e\u610f\u5473\u30012 \u3064\u306e\u7dda\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u65b9\u6cd5\u3001\u305d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306a\u3069\u3001\u4e00\u81f4\u3059\u308b\u7dda\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u4e00\u81f4\u7dda\u306e\u4f8b\u3068\u554f\u984c\u3092\u89e3\u3044\u305f\u3082\u306e\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfque-son-dos-rectas-coincidentes\"><\/span>\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u3068\u306f\u4f55\u3067\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> <strong>2 \u672c\u306e\u4e00\u81f4\u7dda\u3068\u306f\u3001\u3059\u3079\u3066\u306e\u70b9\u304c\u5171\u901a\u3057\u3066\u3044\u308b 2 \u672c\u306e\u7dda\u3067\u3059\u3002<\/strong>\u3057\u305f\u304c\u3063\u3066\u3001\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u76f4\u7dda\u306f\u5b8c\u5168\u306b\u540c\u4e00\u3067\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u3067\u306f\u3001\u4e00\u81f4\u3059\u308b 2 \u672c\u306e\u7dda\u304c\u30b0\u30e9\u30d5\u5316\u3055\u308c\u3066\u3044\u307e\u3059\u304c\u3001\u305d\u308c\u3089\u306f\u91cd\u306a\u3063\u3066\u3044\u308b (\u7b49\u3057\u3044) \u305f\u3081\u30011 \u3064\u3060\u3051\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u3002 <\/p>\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/angle-coincident-lignes.webp\" alt=\"\" class=\"wp-image-1646\" width=\"197\" height=\"175\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p>\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u306f\u5e38\u306b\u540c\u3058\u65b9\u5411\u3092\u5411\u3044\u3066\u3044\u308b\u305f\u3081\u3001\u5e7e\u4f55\u5b66\u7684\u306b\u306f 0 \u5ea6\u306e\u89d2\u5ea6\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001\u5e73\u9762\u3067\u306f\u30012 \u3064\u306e\u7dda\u306e\u9593\u306e\u76f8\u5bfe\u4f4d\u7f6e\u306e\u6982\u5ff5\u306b\u306f 4 \u3064\u306e\u53ef\u80fd\u6027\u304c\u3042\u308b\u3053\u3068\u3092\u899a\u3048\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u30022 \u3064\u306e\u7dda\u306f\u3001\u4e00\u81f4\u3059\u308b\u3001<a href=\"https:\/\/mathority.org\/ja\/\u5e73\u884c\u7dda\u306e\u5b9a\u7fa9\u3068\u4f8b\/\">\u5e73\u884c<\/a>\u3001<a href=\"https:\/\/mathority.org\/ja\/\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u4f8b\/\">\u5272\u7dda<\/a>\u3001<a href=\"https:\/\/mathority.org\/ja\/\u5782\u76f4\u7dda\u306e\u5b9a\u7fa9\u3068\u4f8b-\u76f4\u89d2\u5ea6\/\">\u5782\u76f4\u306b<\/a>\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u5fc5\u8981\u306b\u5fdc\u3058\u3066\u3001\u3053\u308c\u3089\u306e 3 \u3064\u306e\u30ea\u30f3\u30af\u3067\u5404\u7dda\u7a2e\u306e\u610f\u5473\u3068\u305d\u308c\u3089\u306e\u9055\u3044\u3092\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfcomo-saber-si-dos-rectas-son-coincidentes\"><\/span> 2 \u3064\u306e\u7dda\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u3069\u3046\u3084\u3063\u3066\u308f\u304b\u308a\u307e\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p> 2 \u3064\u306e\u7dda\u304c\u3044\u3064\u4e00\u81f4\u3059\u308b\u304b\u306f\u30012 \u3064\u306e\u5ea7\u6a19 (R2) \u3092\u4f7f\u7528\u3059\u308b\u304b\u30013 \u3064\u306e\u5ea7\u6a19 (R3) \u3092\u4f7f\u7528\u3059\u308b\u304b\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"determinar-dos-rectas-coincidentes-en-el-plano\"><\/span>\u5e73\u9762\u5185\u306e 2 \u3064\u306e\u4e00\u81f4\u3059\u308b\u7dda\u3092\u6c7a\u5b9a\u3057\u307e\u3059\u3002<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p> 2 \u6b21\u5143 (2D) \u7a7a\u9593\u3067\u64cd\u4f5c\u3059\u308b\u5834\u5408\u30012 \u3064\u306e\u76f4\u7dda\u304c\u4e00\u81f4\u3059\u308b\u5834\u5408\u3068\u3001\u305d\u308c\u3089\u304c\u76f4\u7dda\u306e<strong>\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f<\/strong>\u307e\u305f\u306f<strong><strong>\u660e\u793a\u7684\u306a<\/strong>\u65b9\u7a0b\u5f0f<\/strong>\u304b\u3089\u751f\u3058\u306a\u3044\u5834\u5408\u3092\u975e\u5e38\u306b\u7c21\u5358\u306b\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u3053\u308c\u3089 2 \u3064\u306e\u65b9\u6cd5\u3068\u306f\u5225\u306b\u30012 \u3064\u306e\u76f4\u7dda\u306e\u65b9\u7a0b\u5f0f\u306b\u3088\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u9023\u7acb\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u3053\u3068\u306b\u3088\u3063\u3066 2 \u3064\u306e\u76f4\u7dda\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059 (\u30b7\u30b9\u30c6\u30e0\u304c\u7121\u9650\u306e\u89e3\u3092\u4e0e\u3048\u308b\u5834\u5408\u3001\u3053\u308c\u306f\u305d\u308c\u3089\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059)\u3002\u305f\u3060\u3057\u3001\u3053\u306e\u624b\u9806\u306f\u3088\u308a\u8907\u96d1\u3067\u6642\u9593\u304c\u304b\u304b\u308b\u305f\u3081\u3001\u9670\u7684\u306a\u65b9\u7a0b\u5f0f\u307e\u305f\u306f\u967d\u7684\u306a\u65b9\u7a0b\u5f0f\u306e\u4fc2\u6570\u304b\u3089\u5b9f\u884c\u3059\u308b\u65b9\u304c\u826f\u3044\u305f\u3081\u3001\u8a73\u7d30\u306a\u8aac\u660e\u306f\u884c\u3044\u307e\u305b\u3093\u3002 <\/p>\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a-partir-de-la-ecuacion-implicita-o-general-de-la-recta\"><\/span>\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a (\u307e\u305f\u306f\u4e00\u822c\u7684\u306a) \u65b9\u7a0b\u5f0f\u304b\u3089<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>2 \u3064\u306e\u76f4\u7dda\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b 1 \u3064\u306e\u65b9\u6cd5\u306f\u3001\u4e00\u822c\u65b9\u7a0b\u5f0f\u307e\u305f\u306f\u30c7\u30ab\u30eb\u30c8\u65b9\u7a0b\u5f0f\u3068\u3057\u3066\u3082\u77e5\u3089\u308c\u308b\u3001\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f\u306f\u6b21\u306e\u5f0f\u306b\u5bfe\u5fdc\u3057\u307e\u3059\u3002<\/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-02f4d03229cc8bd79a81b676a8132f37_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"Ax+By+C=0\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"137\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u305d\u3046\u3067\u3059\u306d<strong>\u30012 \u3064\u306e\u76f4\u7dda\u306b 3 \u3064\u306e\u6bd4\u4f8b\u4fc2\u6570 (A\u3001B\u3001C) \u304c\u3042\u308b\u5834\u5408<\/strong>\u3001\u3053\u308c\u306f\u305d\u308c\u3089\u304c\u4e00\u81f4\u3059\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/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-ce8e0c71142b89e0985aa730b40f15db_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ Ax+By+C=0 \\qquad \\qquad s: \\ A'x+B'y+C'=0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"417\" 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-38af209a728e212f09684571275aa91e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{A}{A'} = \\cfrac{B}{B'}= \\cfrac{C}{C'} \\quad \\longrightarrow \\quad \\bm{r} \\text{ y } \\bm{s} \\text{ son coincidentes}\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"349\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e 2 \u884c\u306f\u4e00\u81f4\u3057\u307e\u3059\u3002<\/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-67280ad255ed8320fb340756b25bed0c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ 4x+6y-2=0 \\qquad \\qquad s: \\ 2x+3y-1=0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"373\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u305d\u3057\u3066\u30d1\u30e9\u30e1\u30fc\u30bf A\u3001B\u3001C \u306f\u4e92\u3044\u306b\u6bd4\u4f8b\u3059\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u306f\u4e00\u81f4\u3057\u307e\u3059\u3002 <\/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-96271c1670f39bd2f0b064b928e5bbf7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{4}{2} = \\cfrac{6}{3}= \\cfrac{-2}{-1}= 2\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"131\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<h4 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a-partir-de-la-ecuacion-explicita-de-la-recta\"><\/span>\u660e\u793a\u7684\u306a\u76f4\u7dda\u306e\u65b9\u7a0b\u5f0f\u304b\u3089<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>2 \u3064\u306e\u76f4\u7dda\u304c\u5b9f\u969b\u306b\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u3082\u3046 1 \u3064\u306e\u65b9\u6cd5\u306f\u3001\u76f4\u7dda\u306e\u660e\u793a\u7684\u306a\u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u306e\u76f4\u7dda\u306e\u660e\u793a\u7684\u306a\u65b9\u7a0b\u5f0f\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3042\u308b\u3053\u3068\u3092\u601d\u3044\u51fa\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/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-8e4adcc4368f6296906b6231bf17a6a4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=mx+n\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"91\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> <strong>2 \u3064\u306e\u76f4\u7dda\u306e\u50be\u304d<\/strong>(\u4fc2\u6570 m)<strong>\u3068\u539f\u70b9\u306e\u7e26\u5ea7\u6a19 (\u4fc2\u6570 n) \u304c\u540c\u3058\u3067<\/strong>\u3042\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u306f 2 \u3064\u306e\u76f4\u7dda\u304c\u7d50\u5408\u3055\u308c\u305f\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002<\/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-118d5497956dca1ee066f6df259638a4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ y=m_rx+n_r \\qquad \\qquad s: \\ y=m_sx+n_s\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"339\" 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-31b5e5f16e9b8d4a399ff746d166ec46_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left.\\begin{array}{c} m_r = m_s \\\\[2ex] n_r=n_s \\end{array} \\right\\} \\longrightarrow \\ \\bm{r} \\text{ y } \\bm{s} \\text{ son  coincidentes}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"306\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e 2 \u3064\u306e\u7dda\u306f\u3001\u3082\u3068\u3082\u3068\u7b49\u3057\u3044\u50be\u304d\u3068\u7e26\u5ea7\u6a19\u3092\u6301\u3063\u3066\u3044\u308b\u305f\u3081\u3001\u540c\u3058\u3067\u3059\u3002<\/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-f866703bb2cd8358ae2c77517f113dec_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ y=3x-1 \\qquad \\qquad s: \\ y=3x-1\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"293\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u50be\u304d\u304c\u540c\u3058\u3067\u3082\u539f\u70b9\u3067\u306e\u9806\u5e8f\u304c\u7570\u306a\u308b\u5834\u5408\u3001\u305d\u308c\u3089\u306f\u5e73\u884c\u3067\u3042\u308a\u3001\u4e00\u81f4\u3059\u308b\u7dda\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u4f8b\u3067\u308f\u304b\u308b\u3088\u3046\u306b\u3001\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u76f4\u7dda\u306b\u306f\u540c\u3058\u660e\u793a\u7684\u306a\u65b9\u7a0b\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u3042\u3089\u3086\u308b\u30bf\u30a4\u30d7\u306e\u76f4\u7dda\u65b9\u7a0b\u5f0f\u306b\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002\u65b9\u7a0b\u5f0f\u5185\u3067 2 \u3064\u306e\u76f4\u7dda\u304c\u4e00\u81f4\u3059\u308b\u5834\u5408\u3001\u3053\u308c\u306f\u305d\u308c\u3089\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"hallar-dos-rectas-coincidentes-en-el-espacio\"><\/span>\u7a7a\u9593\u5185\u3067\u4e00\u81f4\u3059\u308b 2 \u672c\u306e\u7dda\u3092\u898b\u3064\u3051\u308b<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u7a7a\u9593\u5185 (R3) \u3067\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u3092\u8b58\u5225\u3059\u308b\u3053\u3068\u306f\u3001\u3082\u3046 1 \u3064\u306e\u5ea7\u6a19\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3092\u5b9f\u884c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u305f\u3081\u3001\u30c7\u30ab\u30eb\u30c8\u5e73\u9762 (R2) \u3067\u306e\u8b58\u5225\u3068\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u305d\u308c\u3067\u306f\u3001\u305d\u308c\u304c\u3069\u306e\u3088\u3046\u306b\u884c\u308f\u308c\u308b\u304b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046:<\/p>\n<p>\u7a7a\u9593\u5185\u306e 2 \u3064\u306e\u7570\u306a\u308b\u76f4\u7dda\u306e\u65b9\u7a0b\u5f0f\u3092\u8003\u3048\u308b\u3068\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/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-a7ed891adcd2a9eb85e22808c151a857_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle r: \\ \\begin{cases} A_1x+B_1y+C_1z+D_1=0 \\\\[2ex]A_2x+B_2y+C_2z+D_2=0 \\end{cases} \\qquad \\qquad s: \\ \\begin{cases} A_1'x+B_1'y+C_1'z+D_1'=0 \\\\[2ex]A_2'x+B_2'y+C_2'z+D_2'=0 \\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"601\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u305d\u3057\u3066\u3001M \u3068 M&#8217; \u3092\u7dda\u306e\u4fc2\u6570\u306b\u3088\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u884c\u5217\u3068\u3057\u307e\u3059\u3002<\/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-cb73091f41e0751855a8e1b7e73ac4d7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle M=\\begin{pmatrix} A_1&amp;B_1&amp;C_1\\\\[1.1ex]A_2&amp;B_2&amp;C_2 \\\\[1.1ex]A_1'&amp;B_1'&amp;C_1'\\\\[1.1ex]A_2'&amp;B_2'&amp;C_2' \\end{pmatrix}\\qquad \\qquad M'=\\begin{pmatrix} A_1&amp;B_1&amp;C_1&amp;D_1 \\\\[1.1ex]A_2&amp;B_2&amp;C_2&amp;D_2 \\\\[1.1ex]A_1'&amp;B_1'&amp;C_1'&amp;D_1'\\\\[1.1ex]A_2'&amp;B_2'&amp;C_2'&amp;D_2' \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"109\" width=\"450\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u6b21\u306b\u3001<strong>\u884c\u5217 M \u3068 M&#8217; \u306e\u30e9\u30f3\u30af\u304c 2 \u306b\u7b49\u3057\u3044\u5834\u5408\u30012 \u3064\u306e\u30e9\u30a4\u30f3\u306f\u4e00\u81f4\u3057\u307e\u3059\u3002<\/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-3ec4a947fabe774c5f2e3bbfd05ddcd0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"rg(M)=rg(M') = 2 \\ \\longrightarrow \\ \\bm{r} \\text{ y } \\bm{s} \\text{ son coincidentes}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"381\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\u3092\u901a\u3058\u3066\u3001\u7a7a\u9593\u5185\u306e\u4e00\u81f4\u3059\u308b\u7dda\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>\u6b21\u306e 2 \u884c\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8a81fab3c2adb66dc44c4c31384838ed_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle r: \\ \\begin{cases} x+2y+z+3=0 \\\\[2ex]3x+4y+z+8=0 \\end{cases} \\qquad \\qquad s: \\ \\begin{cases} x-z+2=0 \\\\[2ex]2y+2z+1=0 \\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"457\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u30e9\u30a4\u30f3\u306e\u4fc2\u6570\u306e\u884c\u5217 M \u3068\u62e1\u5f35\u884c\u5217 M&#8217; \u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/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-4451bc436023267251b927f54717d02d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle M=\\begin{pmatrix} 1&amp;2&amp;1 \\\\[1.1ex]3&amp;4&amp;1 \\\\[1.1ex]1&amp;0&amp;-1\\\\[1.1ex]0&amp;2&amp;2\\end{pmatrix}\\qquad \\qquad M'=\\begin{pmatrix} 1&amp;2&amp;1&amp;3 \\\\[1.1ex]3&amp;4&amp;1&amp;8 \\\\[1.1ex]1&amp;0&amp;-1&amp;2\\\\[1.1ex]0&amp;2&amp;2&amp;1\\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"107\" width=\"392\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4e21\u65b9\u306e\u884c\u5217\u3092\u69cb\u7bc9\u3057\u305f\u3089\u3001\u5404\u884c\u5217\u306e\u7bc4\u56f2\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/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-a9ea6ecf0646ec24eef5f5aee77cced9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"rg(M)=2 \\qquad \\qquad rg(M') = 2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"241\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p> 2 \u3064\u306e\u884c\u5217\u306e\u30e9\u30f3\u30af\u306f\u540c\u7b49\u3067\u3042\u308a\u3001\u3055\u3089\u306b\u3001\u5024\u306f 2 \u3067\u3059<strong>\u3002\u3057\u305f\u304c\u3063\u3066\u30012 \u3064\u306e\u884c\u306f\u6df7\u540c\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/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-3ec4a947fabe774c5f2e3bbfd05ddcd0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"rg(M)=rg(M') = 2 \\ \\longrightarrow \\ \\bm{r} \\text{ y } \\bm{s} \\text{ son coincidentes}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"381\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"propiedades-de-las-rectas-coincidentes\"><\/span>\u4e00\u81f4\u3059\u308b\u7dda\u306e\u6027\u8cea<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4e00\u81f4\u7dda\u306b\u306f\u6b21\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u76f4\u7dda\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb (\u76f4\u7dda\u306e\u65b9\u5411\u3092\u793a\u3059\u30d9\u30af\u30c8\u30eb) \u306f\u6bd4\u4f8b\u3059\u308b\u305f\u3081\u3001\u7dda\u5f62\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u5e73\u884c\u7dda\u306b\u3082\u3053\u306e\u6027\u8cea\u304c\u3042\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u540c\u69d8\u306b\u3001\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u76f4\u7dda\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb\u306f\u540c\u3058\u65b9\u5411\u3092\u6301\u3061\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u306f\u3001\u30b0\u30e9\u30d5\u4e0a\u3067\u306f\u540c\u3058\u7dda\u3067\u8868\u3055\u308c\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u3053\u306e\u610f\u5473\u3067\u30012 \u3064\u306e\u4e00\u81f4\u3059\u308b\u7dda\u306b\u306f\u3059\u3079\u3066\u5171\u901a\u70b9\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u8ef8\u3068\u306e\u4ea4\u70b9\u306f\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n<\/ul>\n<ul>\n<li>\u660e\u3089\u304b\u306b\u3001\u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u306f\u540c\u4e00\u5e73\u9762\u4e0a\u306b\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u540c\u3058\u5e73\u9762\u5185\u306b\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u3053\u3067\u306f\u3001\u4e00\u81f4\u3059\u308b\u7dda\u306e\u610f\u5473\u30012 \u3064\u306e\u7dda\u304c\u4e00\u81f4\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u5224\u65ad\u3059\u308b\u65b9\u6cd5\u3001\u305d\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306a\u3069\u3001\u4e00\u81f4\u3059\u308b\u7dda\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u4e00\u81f4\u7dda\u306e\u4f8b\u3068\u554f\u984c\u3092\u89e3\u3044\u305f\u3082\u306e\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 \u4e00\u81f4\u3059\u308b 2 \u3064\u306e\u7dda\u3068\u306f\u4f55\u3067\u3059 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ja\/%e4%b8%80%e8%87%b4%e7%b7%9a%e3%81%ae%e5%ae%9a%e7%be%a9%e3%81%a8%e4%be%8b\/\"> <span class=\"screen-reader-text\">\u4e00\u81f4\u7dda<\/span> \u3082\u3063\u3068\u8aad\u3080 &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":[15],"tags":[],"class_list":["post-232","post","type-post","status-publish","format-standard","hentry","category-15"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u4e00\u81f4\u3059\u308b\u7dda - \u30de\u30bd\u30ea\u30c6\u30a3<\/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\/ja\/\u4e00\u81f4\u7dda\u306e\u5b9a\u7fa9\u3068\u4f8b\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4e00\u81f4\u3059\u308b\u7dda - \u30de\u30bd\u30ea\u30c6\u30a3\" \/>\n<meta property=\"og:description\" content=\"\u3053\u3053\u3067\u306f\u3001\u4e00\u81f4\u3059\u308b\u7dda\u306e\u610f\u5473\u30012 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