{"id":230,"date":"2023-07-10T21:19:16","date_gmt":"2023-07-10T21:19:16","guid":{"rendered":"https:\/\/mathority.org\/ja\/%e4%ba%a4%e5%b7%ae%e3%81%99%e3%82%8b%e7%b7%9a%e3%81%ae%e4%be%8b\/"},"modified":"2023-07-10T21:19:16","modified_gmt":"2023-07-10T21:19:16","slug":"%e4%ba%a4%e5%b7%ae%e3%81%99%e3%82%8b%e7%b7%9a%e3%81%ae%e4%be%8b","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/%e4%ba%a4%e5%b7%ae%e3%81%99%e3%82%8b%e7%b7%9a%e3%81%ae%e4%be%8b\/","title":{"rendered":"\u4ea4\u5dee\u3059\u308b\u7dda"},"content":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u5272\u7dda\u306e\u610f\u5473\u3001\u5b58\u5728\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u30012 \u672c\u306e\u7dda\u304c\u5272\u7dda\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u77e5\u308b\u65b9\u6cd5\u3001\u305d\u308c\u3089\u306e\u5171\u901a\u70b9\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u306a\u3069\u3001\u5272\u7dda\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u3044\u304f\u3064\u304b\u306e\u4f8b\u3068\u89e3\u6c7a\u3055\u308c\u305f\u6f14\u7fd2\u3082\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u5272\u7dda\u306e\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfque-son-dos-rectas-secantes\"><\/span>\u4ea4\u5dee\u3059\u308b2\u672c\u306e\u7dda\u3068\u306f\u4f55\u3067\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u6570\u5b66\u306b\u304a\u3051\u308b\u5272\u7dda\u306e\u5b9a\u7fa9\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n<p> <strong>2 \u3064\u306e\u7dda\u304c 1 \u70b9\u3067\u306e\u307f\u4ea4\u5dee\u3059\u308b\u5834\u5408\u30012 \u3064\u306e\u7dda\u306f\u4ea4\u5dee\u3057\u307e\u3059\u3002<\/strong>\u3057\u305f\u304c\u3063\u3066\u3001\u4ea4\u5dee\u3059\u308b\u7dda\u306b\u306f\u5171\u901a\u70b9\u304c 1 \u3064\u3060\u3051\u3042\u308a\u307e\u3059\u3002\u3055\u3089\u306b\u30012 \u3064\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u306f\u5fc5\u305a\u540c\u3058\u30c7\u30ab\u30eb\u30c8\u5e73\u9762\u306b\u542b\u307e\u308c\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<p> 2 \u3064\u306e\u7dda\u304c 1 \u70b9\u3067\u4ea4\u5dee\u3059\u308b\u3068\u3044\u3046\u6982\u5ff5\u306f\u91cd\u8981\u3067\u3059\u30022 \u3064\u306e\u7dda\u306b\u8907\u6570\u306e\u4ea4\u70b9\u304c\u3042\u308c\u3070\u4e00\u81f4\u3059\u308b\u7dda\u3068\u306a\u308a\u3001\u4e00\u65b9\u3001\u4ea4\u70b9\u304c\u306a\u3051\u308c\u3070\u5e73\u884c\u7dda\u3068\u306a\u308b\u304b\u3089\u3067\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ejemplos-de-rectas-secantes\"><\/span>\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>2 \u3064\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u610f\u5473\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u6b21\u306b\u3053\u306e\u30bf\u30a4\u30d7\u306e\u7dda\u306e 2 \u3064\u306e\u7570\u306a\u308b\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-129\">\n<div class=\"wp-block-column is-layout-flow\">\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\/exemples-de-lignes-secantes.webp\" alt=\"\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u4f8b\" class=\"wp-image-4275\" width=\"214\" height=\"218\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\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\/secantes-exemple.webp\" alt=\"\u5272\u7dda\u306e\u4f8b\" class=\"wp-image-4276\" width=\"205\" height=\"193\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<\/div>\n<p>\u3054\u89a7\u306e\u3068\u304a\u308a\u3001\u76f4\u7dda<em>r<\/em>\u3068<em>\u76f4\u7dda s \u306f<\/em>\u4e00\u70b9\u3067\u63a5\u3057\u3066\u3044\u308b\u305f\u3081\u4ea4\u5dee\u3057\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u540c\u69d8\u306b\u3001\u76f4\u7dda<em>t\u3068<\/em>\u76f4\u7dda<em>u<\/em>\u304c\u4ea4\u308f\u308b\u70b9\u304c\u3042\u308b\u306e\u3067\u3001\u76f4\u7ddat\u3068\u76f4\u7ddau\u304c\u4ea4\u5dee\u3057\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"tipos-de-rectas-secantes\"><\/span> \u4ea4\u5dee\u3059\u308b\u7dda\u306e\u7a2e\u985e<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4ea4\u5dee\u3059\u308b\u7dda\u306b\u306f 2 \u3064\u306e\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li><strong>\u5782\u76f4\u7dda<\/strong>: 90 \u5ea6\u306e\u76f4\u89d2\u3067\u4ea4\u5dee\u3059\u308b\u7dda\u3067\u3059\u3002<\/li>\n<li><strong>\u659c\u7dda:<\/strong> 0 \u5ea6\u304b\u3089 90 \u5ea6\u307e\u3067\u306e\u92ed\u89d2\u3067\u4ea4\u5dee\u3059\u308b\u7dda\u3067\u69cb\u6210\u3055\u308c\u307e\u3059 (\u542b\u307e\u308c\u3066\u3044\u307e\u305b\u3093)\u3002 <\/li>\n<\/ul>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"rectas-perpendiculares\"><\/span>\u5782\u76f4\u76f4\u7dda<span class=\"ez-toc-section-end\"><\/span><\/h3>\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\/lignes-perpendiculaires-a-90-degres.webp\" alt=\"\u5782\u76f4\u4ea4\u5dee\u7dda\" class=\"wp-image-1884\" width=\"183\" height=\"209\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p><strong>\u5782\u76f4\u7dda\u306f\u3001<\/strong> 4 \u3064\u306e 90 \u5ea6\u306e\u89d2\u5ea6\u3092\u5f62\u6210\u3059\u308b\u3088\u3046\u306b\u4ea4\u5dee\u3059\u308b\u7dda\u3067\u3059\u3002<\/p>\n<p>\u540c\u69d8\u306b\u30012 \u3064\u306e\u5782\u7dda\u306e\u50be\u304d\u306f\u5e38\u306b\u6b21\u306e\u6761\u4ef6\u3092\u6e80\u305f\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-b334a779381b6ab728642af8136b66a9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_r = -\\cfrac{1}{m_s}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"85\" style=\"vertical-align: -15px;\"><\/p>\n<\/p>\n<p>\u5782\u76f4\u306b\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u3082\u3046 1 \u3064\u306e\u7279\u6027\u306f\u3001\u305d\u308c\u3089\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb (\u7dda\u306e\u65b9\u5411\u3092\u793a\u3059\u30d9\u30af\u30c8\u30eb) \u9593\u306e\u5185\u7a4d\u304c 0 \u306b\u7b49\u3057\u3044\u3053\u3068\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-4b2db86aa49b4d137058e4e611b75a0a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{\\text{v}}_r \\cdot \\vv{\\text{v}}_s = 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"79\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u5782\u76f4\u7dda\u306b\u3055\u3089\u306b\u8208\u5473\u304c\u3042\u308b\u5834\u5408\u306f\u3001\u3053\u306e\u30ea\u30f3\u30af\u3067<a href=\"https:\/\/mathority.org\/ja\/\u5782\u76f4\u7dda\u306e\u5b9a\u7fa9\u3068\u4f8b-\u76f4\u89d2\u5ea6\/\">\u5782\u76f4\u7dda\u306e\u4f8b\u3092<\/a>\u53c2\u7167\u3067\u304d\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u5225\u306e\u7dda\u306b\u5782\u76f4\u306a\u7dda\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u3001\u3053\u306e\u30bf\u30a4\u30d7\u306e\u7dda\u306e\u7279\u6027\u3001\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3055\u308c\u308b\u6f14\u7fd2\u306a\u3069\u3082\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"rectas-oblicuas\"><\/span>\u659c\u7dda<span class=\"ez-toc-section-end\"><\/span><\/h3>\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\/angles-droits-secants.webp\" alt=\"\" class=\"wp-image-1644\" width=\"218\" height=\"205\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p><strong>\u659c\u7dda\u306f\u3001<\/strong>\u92ed\u89d2\u3068\u920d\u89d2\u304c\u30da\u30a2\u306b\u306a\u3063\u3066\u4ea4\u5dee\u3059\u308b\u7dda\u3067\u3059\u3002\u3064\u307e\u308a\u30012 \u3064\u306e\u92ed\u89d2 (90 \u5ea6\u672a\u6e80) \u3068 2 \u3064\u306e\u920d\u89d2 (90 \u5ea6\u3092\u8d85\u3048\u308b) \u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u30012 \u3064\u306e\u7dda\u306e\u89d2\u5ea6\u306e\u5b9a\u7fa9\u306b\u3088\u308c\u3070\u30012 \u3064\u306e\u7dda\u306e\u9593\u306e\u89d2\u5ea6\u306f\u30012 \u3064\u306e\u7dda\u304c\u306a\u3059\u89d2\u5ea6\u306e\u4e2d\u3067\u6700\u3082\u5c0f\u3055\u3044\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p> 2 \u672c\u306e\u659c\u7dda\u3068\u305d\u306e\u50be\u304d\u306e\u9593\u306e\u89d2\u5ea6\u306f\u3001\u6b21\u306e\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u8a08\u7b97\u3067\u304d\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-82acfc9ae51ee3a469cfabc7024aa75c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\text{tg}(\\alpha) =\\begin{vmatrix} \\cfrac{m_2-m_1}{1+m_1\\cdot m_2} \\end{vmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"44\" width=\"166\" style=\"vertical-align: -17px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfcomo-saber-si-dos-rectas-son-secantes\"><\/span> 2 \u672c\u306e\u7dda\u304c\u4ea4\u5dee\u3057\u3066\u3044\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\u76f4\u7dda\u306e\u76f8\u5bfe\u4f4d\u7f6e\u3092\u6c42\u3081\u308b\u65b9\u6cd5\u306f\u4e3b\u306b 3 \u3064\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li> 2 \u672c\u306e\u76f4\u7dda\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<li> 2\u672c\u306e\u7dda\u306e\u52fe\u914d\u4ed8\u304d\u3002<\/li>\n<li> 2 \u3064\u306e\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a (\u307e\u305f\u306f\u4e00\u822c\u7684\u306a) \u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p>\u6b21\u306b\u30012 \u3064\u306e\u7dda\u304c\u4ea4\u5dee\u3059\u308b\u3068\u304d\u3092\u77e5\u308b\u305f\u3081\u306b\u5b58\u5728\u3059\u308b 3 \u3064\u306e\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a-partir-de-los-vectores-directores-de-las-rectas\"><\/span>\u7dda\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb\u304b\u3089<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>2 \u3064\u306e\u7570\u306a\u308b\u7dda<strong>\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb<\/strong>(\u7dda\u306e\u65b9\u5411\u3092\u793a\u3059\u30d9\u30af\u30c8\u30eb)<strong>\u306e\u5ea7\u6a19\u304c\u6bd4\u4f8b\u3057\u306a\u3044<\/strong>\u5834\u5408\u3001\u3053\u308c\u3089 2 \u3064\u306e\u7dda\u306f\u4ea4\u5dee\u3057\u307e\u3059\u3002<\/p>\n<p>\u4ea4\u5dee\u3059\u308b 2 \u3064\u306e\u7dda\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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-5d8a2fa136f2840fc1f680e0f7f10ed6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle r: \\ \\begin{cases} x=1+2t \\\\[2ex] y= 5-3t \\end{cases}\\qquad \\qquad s: \\ \\begin{cases} x=1+t \\\\[2ex] y=2+4t \\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"341\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4e21\u65b9\u306e\u7dda\u306f\u30d1\u30e9\u30e1\u30c8\u30ea\u30c3\u30af\u65b9\u7a0b\u5f0f\u3068\u3057\u3066\u8868\u73fe\u3055\u308c\u308b\u305f\u3081\u3001\u5404\u7dda\u306e\u65b9\u5411\u30d9\u30af\u30c8\u30eb\u306e\u6210\u5206\u306f\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u524d\u306b\u3042\u308b\u6570\u5024\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-40f8b062c79839dcf7f2885a9e1469e7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"t:\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"15\" 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-47af5d91c1b73436a1d093b726f25fc5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\vv{r} =(2,-3) \\qquad \\qquad \\vv{s}=(1,4)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"227\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u65b9\u5411\u30d9\u30af\u30c8\u30eb\u304c\u6bd4\u4f8b\u3057\u3066\u3044\u308b\u304b\u3069\u3046\u304b\u3092\u78ba\u8a8d\u3059\u308b\u306b\u306f\u3001\u305d\u308c\u3089\u306e\u5ea7\u6a19\u3092\u305d\u308c\u3089\u306e\u9593\u3067\u5206\u5272\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4e21\u65b9\u306e\u90e8\u9580\u3067\u540c\u3058\u7d50\u679c\u304c\u5f97\u3089\u308c\u305f\u5834\u5408\u3001\u305d\u308c\u3089\u306f\u6bd4\u4f8b\u3057\u307e\u3059\u3002\u4e00\u65b9\u3001\u7d50\u679c\u304c\u7570\u306a\u308b\u5834\u5408\u306f\u3001\u30d9\u30af\u30c8\u30eb\u304c\u6bd4\u4f8b\u3057\u3066\u3044\u306a\u3044\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-eec422a81e65b12a2cdccd7f3f046d43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{2}{1} \\neq \\cfrac{-3}{4}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"65\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u306e\u5206\u5272\u306f\u7b49\u4fa1\u3067\u306f\u306a\u3044\u305f\u3081\u3001\u30d9\u30af\u30c8\u30eb\u306f\u6bd4\u4f8b\u305b\u305a\u3001\u3057\u305f\u304c\u3063\u3066\u7dda\u306f\u4ea4\u5dee\u3057\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a-partir-de-las-pendientes\"><\/span>\u5742\u306e\u59cb\u307e\u308a\u3067<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>2 \u672c\u306e\u7dda\u306e<strong>\u50be\u304d\u304c\u7570\u306a\u308b<\/strong>\u5834\u5408\u3001\u3053\u308c\u306f\u7dda\u304c\u4ea4\u5dee\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e 2 \u3064\u306e\u7dda\u306f\u3001\u50be\u304d\u304c\u7570\u306a\u308b\u305f\u3081\u4ea4\u5dee\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-ffc969eee2677b9ecad5cf5db53e8f5b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ y=-2x+4 \\qquad \\qquad s: \\ y=3x+1\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"307\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u7dda\u306e\u50be\u304d<\/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-c409433a9e2dfcdb83360a974d243f18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p>-2 \u3068\u76f4\u7dda\u306e\u50be\u304d<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ae1901659f469e6be883797bfd30f4f8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"s\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"8\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u306f3\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-f90d75463e776b8be3bde1e06098dd6e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"m_r =-2 \\neq m_s =3\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"148\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> 2 \u3064\u306e\u7dda\u306f\u540c\u3058\u50be\u304d\u3092\u6301\u305f\u306a\u3044\u305f\u3081\u3001\u4ea4\u5dee\u3057\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"a-partir-de-ecuacion-implicita-de-la-recta\"><\/span>\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f\u304b\u3089<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u307e\u305f\u30012 \u3064\u306e\u76f4\u7dda\u304c\u4ea4\u5dee\u3059\u308b\u304b\u3069\u3046\u304b\u306f\u3001\u76f4\u7dda\u306e\u9670\u7684\u306a\u65b9\u7a0b\u5f0f (\u307e\u305f\u306f\u4e00\u822c\u65b9\u7a0b\u5f0f) \u306b\u3088\u3063\u3066\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u76f4\u7dda\u306e\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f\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-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>\u3057\u305f\u304c\u3063\u3066\u3001<strong>\u4fc2\u6570 A \u3068 B \u304c\u6bd4\u4f8b\u3057\u306a\u3044\u5834\u5408\u30012 \u3064\u306e\u76f4\u7dda\u306f\u4ea4\u5dee\u3057\u307e\u3059\u3002<\/strong><\/p>\n<p>\u6697\u9ed9\u7684\u306a\u65b9\u7a0b\u5f0f\u3067\u5b9a\u7fa9\u3055\u308c\u305f 2 \u3064\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u4f8b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\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-d44b9676f447f9b6adbee40874e49690_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ 3x-y+5=0 \\qquad \\qquad s: \\ -2x+6y-1=0\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"378\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u3053\u308c\u3089\u304c 2 \u3064\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u3067\u3042\u308b\u3053\u3068\u3092\u691c\u8a3c\u3059\u308b\u306b\u306f\u3001\u4fc2\u6570 A (\u5909\u6570\u306e\u524d\u306e\u6570\u5024) \u306e\u6bd4\u4f8b\u6027\u3092\u5206\u6790\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-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> ) \u4fc2\u6570 B (\u5909\u6570\u306e\u524d\u306e\u6570\u5b57)<\/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-b05e5244b2fc745581be03a3aa46a909_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\cfrac{3}{-2} \\neq \\cfrac{-1}{6}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"79\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p> 2 \u3064\u306e\u9805\u306f\u6bd4\u4f8b\u3057\u306a\u3044\u305f\u3081\u3001\u5b9f\u8cea\u7684\u306b 2 \u3064\u306e\u7dda\u306f\u4ea4\u5dee\u3057\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"hallar-el-punto-en-comun-de-dos-rectas-secantes\"><\/span> 2\u672c\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u5171\u901a\u70b9\u3092\u898b\u3064\u3051\u308b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u3053\u308c\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306b\u3001\u4ea4\u5dee\u3059\u308b\u7dda\u306b\u306f\u5171\u901a\u70b9\u304c 1 \u3064\u3060\u3051\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u30012 \u3064\u306e\u5272\u7dda\u306e\u4ea4\u70b9\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f<strong>\u30012 \u3064\u306e\u76f4\u7dda\u306b\u3088\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u9023\u7acb\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/p>\n<p>\u4f8b\u3068\u3057\u3066\u3001\u6b21\u306e 2 \u3064\u306e\u7dda\u306e\u4ea4\u70b9\u3092\u898b\u3064\u3051\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-05c8377db50add3d4faf73850cc60a7c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"r: \\ x+2y-5=0 \\qquad \\qquad s: \\ 2x-3y+3=0\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"364\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p> 2 \u3064\u306e\u76f4\u7dda\u306e\u4ea4\u70b9\u3092\u6c7a\u5b9a\u3059\u308b\u306b\u306f\u30012 \u3064\u306e\u76f4\u7dda\u306b\u3088\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u9023\u7acb\u4e00\u6b21\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\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-77ae257986963d3652d5996fc09be9fb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left.\\begin{array}{l} x+2y-5=0\\\\[2ex] 2x-3y+3=0\\end{array}\\right\\}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"143\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u3053\u306e\u5834\u5408\u306f\u4ee3\u5165\u6cd5\u3067\u7cfb\u3092\u89e3\u304d\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5909\u6570\u3092\u5206\u96e2\u3057\u307e\u3059<\/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>\u6700\u521d\u306e\u5f0f\u304b\u3089\u5f97\u305f\u5024\u3092 2 \u756a\u76ee\u306e\u5f0f\u306b\u4ee3\u5165\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-3ad955c3f2ebeb8ad0bdee85a226c73b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left.\\begin{array}{l} x+2y-5=0\\\\[2ex] 2x-3y+3=0\\end{array}\\right\\} \\begin{array}{l}\\longrightarrow \\ x=5-2y \\\\[2ex]&amp;\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"278\" 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-13c38ef2a3a9652f98e85ca3971ea19e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2(5-2y)-3y+3=0\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"174\" 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-d36818c4d56435c0bd61b5e8d08f68d9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"10-4y-3y=3\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"129\" 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-7e8fe95b04b3335d2afeb7f50c4329e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-4y-3y=3-10\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"143\" 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-033bc2f0282c34eecb1e61e554ba16ae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-7y=-7\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"78\" 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-d924d2b97f62476d7a2c2cebd1a05da6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=\\cfrac{-7}{-7} = 1\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"97\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p>\u305d\u3057\u3066\u3001\u672a\u77e5\u306e\u3082\u306e\u306b\u3069\u308c\u3060\u3051\u306e\u4fa1\u5024\u304c\u3042\u308b\u304b\u304c\u308f\u304b\u308c\u3070\u3001<\/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>\u305d\u306e\u5024\u3092\u3001\u898b\u3064\u304b\u3063\u305f\u5f0f\u306b\u4ee3\u5165\u3057\u307e\u3059\u3002 <\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-845f2902b8bebf60c3c7372a7fbe4d02_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-8480e00ce7c565bee32c0c14b72575b9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=5-2y \\ \\xrightarrow{y \\ = \\ 1} \\ x=5-2\\cdot 1\" title=\"Rendered by QuickLaTeX.com\" height=\"24\" width=\"245\" 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-4f1e7a4af8719584d8cb8f50cecb353c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x = 5-2 = 3\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"106\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u9023\u7acb\u65b9\u7a0b\u5f0f\u306e\u89e3\u306f 2 \u3064\u306e\u76f4\u7dda\u306e\u4ea4\u70b9\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u3057\u3066\u3053\u306e\u30dd\u30a4\u30f3\u30c8\u306f\u3001 <\/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-acb8c599ed9d06fa842a6b66ce97a4ab_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{(3,1)}.\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"42\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"recta-secante-a-una-circunferencia\"><\/span>\u5186\u3068\u4ea4\u5dee\u3059\u308b\u7dda<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u901a\u5e38\u30012 \u672c\u306e\u7dda\u304c\u4ea4\u5dee\u3059\u308b\u3068\u8a00\u3046\u3068\u304d\u3001\u5148\u307b\u3069\u898b\u305f\u6982\u5ff5\u3092\u6307\u3057\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5e7e\u4f55\u5b66\u3067\u306f\u5272\u7dda\u306b\u306f\u5225\u306e\u610f\u5473\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u5186\u3068\u4ea4\u5dee\u3059\u308b\u7dda\u306f\u3001<\/strong> 2 \u3064\u306e\u7570\u306a\u308b\u70b9\u3067\u5186 (\u307e\u305f\u306f\u66f2\u7dda) \u3068\u4ea4\u5dee\u3059\u308b\u7dda\u3067\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\/ligne-secante-avec-un-cercle.webp\" alt=\"\u5186\u3068\u7dda\u304c\u4ea4\u308f\u308b\" class=\"wp-image-1781\" width=\"193\" height=\"245\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<p>\u901a\u5e38\u5c0f\u5b66\u6821\u3067\u6559\u3048\u3089\u308c\u308b 2 \u3064\u306e\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u6982\u5ff5\u3068\u306f\u7570\u306a\u308a\u3001\u5186\u3068\u4ea4\u5dee\u3059\u308b\u7dda\u306e\u3053\u306e\u5b9a\u7fa9\u306f\u3001\u7dda\u3068\u5186\u306e\u3059\u3079\u3066\u306e\u76f8\u5bfe\u4f4d\u7f6e\u3068\u3068\u3082\u306b\u5f8c\u306e\u6388\u696d\u3067\u5b66\u7fd2\u3055\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u5272\u7dda\u306e\u610f\u5473\u3001\u5b58\u5728\u3059\u308b\u3055\u307e\u3056\u307e\u306a\u30bf\u30a4\u30d7\u30012 \u672c\u306e\u7dda\u304c\u5272\u7dda\u3067\u3042\u308b\u304b\u3069\u3046\u304b\u3092\u77e5\u308b\u65b9\u6cd5\u3001\u305d\u308c\u3089\u306e\u5171\u901a\u70b9\u3092\u898b\u3064\u3051\u308b\u65b9\u6cd5\u306a\u3069\u3001\u5272\u7dda\u306b\u95a2\u3059\u308b\u3059\u3079\u3066\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u3044\u304f\u3064\u304b\u306e\u4f8b\u3068\u89e3\u6c7a\u3055\u308c\u305f\u6f14\u7fd2\u3082\u8868\u793a\u3055\u308c\u307e\u3059\u3002\u5272\u7dda\u306e\u3002 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ja\/%e4%ba%a4%e5%b7%ae%e3%81%99%e3%82%8b%e7%b7%9a%e3%81%ae%e4%be%8b\/\"> <span class=\"screen-reader-text\">\u4ea4\u5dee\u3059\u308b\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-230","post","type-post","status-publish","format-standard","hentry","category-15"],"yoast_head":"<!-- This site is optimized 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