{"id":281,"date":"2023-07-06T21:48:53","date_gmt":"2023-07-06T21:48:53","guid":{"rendered":"https:\/\/mathority.org\/ja\/2x2-%e8%a1%8c%e5%88%97%e3%81%a8-3x3-%e8%a1%8c%e5%88%97%e3%81%ae%e4%b9%97%e7%ae%97%e3%81%ae%e4%be%8b%e3%81%a8%e6%bc%94%e7%bf%92%e3%82%92%e6%ae%b5%e9%9a%8e%e7%9a%84%e3%81%ab%e8%a7%a3%e6%b1%ba\/"},"modified":"2023-07-06T21:48:53","modified_gmt":"2023-07-06T21:48:53","slug":"2x2-%e8%a1%8c%e5%88%97%e3%81%a8-3x3-%e8%a1%8c%e5%88%97%e3%81%ae%e4%b9%97%e7%ae%97%e3%81%ae%e4%be%8b%e3%81%a8%e6%bc%94%e7%bf%92%e3%82%92%e6%ae%b5%e9%9a%8e%e7%9a%84%e3%81%ab%e8%a7%a3%e6%b1%ba","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/2x2-%e8%a1%8c%e5%88%97%e3%81%a8-3x3-%e8%a1%8c%e5%88%97%e3%81%ae%e4%b9%97%e7%ae%97%e3%81%ae%e4%be%8b%e3%81%a8%e6%bc%94%e7%bf%92%e3%82%92%e6%ae%b5%e9%9a%8e%e7%9a%84%e3%81%ab%e8%a7%a3%e6%b1%ba\/","title":{"rendered":"\u884c\u5217\u4e57\u7b97"},"content":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u30012\u00d72\u30013\u00d73\u30014\u00d74\u306a\u3069\u306e\u6b21\u5143\u306e<strong>\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b<\/strong>\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u884c\u5217\u306e\u4e57\u7b97\u306e\u624b\u9806\u3092\u4f8b\u3092\u4f7f\u3063\u3066\u6bb5\u968e\u7684\u306b\u8aac\u660e\u3057\u3001\u89e3\u6c7a\u6e08\u307f\u306e\u7df4\u7fd2\u554f\u984c\u3082\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u7df4\u7fd2\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u6700\u5f8c\u306b\u30012 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3067\u304d\u306a\u3044\u5834\u5408\u3068\u3001\u3053\u306e\u884c\u5217\u6f14\u7b97\u306e\u3059\u3079\u3066\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u5b66\u7fd2\u3057\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\"> 2 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b?<\/h2>\n<p>\u4f8b\u3092\u4f7f\u7528\u3057\u3066 2 \u3064\u306e\u884c\u5217\u306e\u4e57\u7b97\u3092\u5b9f\u884c\u3059\u308b\u624b\u9806\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-de-multiplication-matricielle-22152.webp\" alt=\"\u6b21\u5143 2x2 \u306e 2 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u65b9\u6cd5\u306e\u4f8b\u3001\u884c\u5217\u3092\u4f7f\u7528\u3057\u305f\u6f14\u7b97\" width=\"228\" height=\"60\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<p class=\"has-background\" style=\"background-color:#dff6ff\"><strong>\u884c\u5217\u306e\u4e57\u7b97\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001<\/strong>\u5de6\u5074\u306e\u884c\u5217\u306e<strong>\u884c\u3092<\/strong>\u53f3\u5074\u306e\u884c\u5217\u306e<strong>\u5217<\/strong>\u3067\u4e57\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d<strong>\u306b\u6700\u521d\u306e\u884c\u3068\u6700\u521d\u306e\u5217\u3092\u4e57\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/strong>\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u6700\u521d\u306e\u884c\u306e\u5404\u8981\u7d20\u3068\u6700\u521d\u306e\u5217\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u308c\u3089\u3059\u3079\u3066\u304c\u7d50\u679c\u306e\u914d\u5217\u306e\u6700\u521d\u306e\u884c\u306e\u6700\u521d\u306e\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002\u624b\u9806\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-multiplier-des-matrices-22152.webp\" alt=\"2x2 \u884c\u5217\u306e\u4e57\u7b97\u3001\u884c\u5217\u3092\u4f7f\u3063\u305f\u6f14\u7b97\u306e\u89e3\u304d\u65b9\" width=\"504\" height=\"87\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\n<p> 1 <strong>\u22c5<\/strong> 3 + 2 <strong>\u22c5<\/strong> 4 = 3 + 8 = 11\u3002\u3064\u307e\u308a\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p class=\"has-text-align-justify\">\u6b21\u306b\u3001<strong>\u6700\u521d\u306e\u884c\u3068 2 \u756a\u76ee\u306e\u5217<\/strong>\u3092\u4e57\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u624b\u9806\u3092\u7e70\u308a\u8fd4\u3057\u307e\u3059\u3002\u6700\u521d\u306e\u884c\u306e\u5404\u8981\u7d20\u3068 2 \u756a\u76ee\u306e\u5217\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3059\u3079\u3066\u3001\u7d50\u679c\u306e\u914d\u5217\u306e\u6700\u521d\u306e\u884c\u306e 2 \u756a\u76ee\u306e\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p>1 <strong>\u22c5<\/strong> 5 + 2 <strong>\u22c5<\/strong> 1 = 5 + 2 = 7\u3002\u3064\u307e\u308a\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<div class=\"adsb30\" style=\" margin:px; text-align:\"><\/div>\n<p>\u7d50\u679c\u306e\u884c\u5217\u306e\u6700\u521d\u306e\u884c\u3092\u57cb\u3081\u305f\u3089\u30012 \u756a\u76ee\u306e\u884c\u306b\u79fb\u52d5\u3057\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001<strong>\u6b21\u306e\u624b\u9806\u3092\u7e70\u308a\u8fd4\u3057\u3066\u30012 \u884c\u76ee\u3068<\/strong>1 \u5217\u76ee\u3092\u4e57\u7b97\u3057\u307e\u3059\u30022 \u884c\u76ee\u306e\u5404\u8981\u7d20\u3068 1 \u5217\u76ee\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p>-3 <strong>\u22c5<\/strong> 3 + 0 <strong>\u22c5<\/strong> 4 = -9 + 0 = -9\u3002\u307e\u3060\uff1a <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p class=\"has-text-align-justify\">\u6700\u5f8c\u306b\u3001 <strong>2 \u756a\u76ee\u306e\u884c\u3068 2 \u756a\u76ee\u306e\u5217<\/strong>\u3092\u4e57\u7b97\u3057\u307e\u3059\u3002\u5e38\u306b\u540c\u3058\u624b\u9806\u3067\u30012 \u884c\u76ee\u306e\u5404\u8981\u7d20\u3068 2 \u5217\u76ee\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p>-3 <strong>\u22c5<\/strong> 5 + 0 <strong>\u22c5<\/strong> 1 = -15 + 0 = -15\u3002\u307e\u3060\uff1a<\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><\/figure>\n<\/div>\n<p>\u305d\u3057\u3066\u3053\u3053\u3067 2 \u3064\u306e\u884c\u5217\u306e\u4e57\u7b97\u304c\u7d42\u4e86\u3057\u307e\u3059\u3002\u3053\u308c\u307e\u3067\u898b\u3066\u304d\u305f\u3088\u3046\u306b\u3001\u884c\u3068\u5217\u3092\u4e57\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u5e38\u306b\u540c\u3058\u624b\u9806\u3092\u7e70\u308a\u8fd4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u884c\u306e\u5404\u8981\u7d20\u3068\u5217\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u305d\u306e\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002<\/p>\n<h2 class=\"wp-block-heading\">\u884c\u5217\u4e57\u7b97\u306e\u6f14\u7fd2\u3092\u89e3\u6c7a\u3057\u307e\u3057\u305f<\/h2>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 1<\/h3>\n<p>\u6b21\u306e\u884c\u5217\u7a4d\u3092\u89e3\u304d\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercice-resolu-de-produit-de-matrices-22.webp\" alt=\"\u6f14\u7fd2\u3092\u6bb5\u968e\u7684\u306b\u89e3\u304f 2x2 \u884c\u5217\u306e\u7a4d\u3001\u884c\u5217\u3092\u4f7f\u3063\u305f\u6f14\u7b97\" width=\"172\" height=\"68\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\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>\u89e3\u6c7a\u7b56\u3092\u53c2\u7167<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u3053\u308c\u306f\u6b21\u6570 2 \u306e\u884c\u5217\u306e\u7a4d\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-747926b92c1d388c1150613b0f471d7e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 2 \\\\[1.1ex] 3 &amp; 4  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; -2 \\\\[1.1ex] 1 &amp; 5  \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"142\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u884c\u5217\u306e\u7a4d\u3092\u89e3\u304f\u306b\u306f\u3001\u5de6\u306e\u884c\u5217\u306e\u884c\u3068\u53f3\u306e\u884c\u5217\u306e\u5217\u3092\u4e57\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p class=\"has-text-align-left has-text-align-justify\">\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d<strong>\u306b\u6700\u521d\u306e\u884c\u3068\u6700\u521d\u306e\u5217\u3092\u4e57\u7b97\u3057\u307e\u3059\u3002<\/strong>\u3053\u308c\u3092\u884c\u3046\u306b\u306f\u3001\u6700\u521d\u306e\u884c\u306e\u5404\u8981\u7d20\u3068\u6700\u521d\u306e\u5217\u306e\u5404\u8981\u7d20\u3092 1 \u3064\u305a\u3064\u4e57\u7b97\u3057\u3001\u7d50\u679c\u3092\u52a0\u7b97\u3057\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u3059\u3079\u3066\u3001\u7d50\u679c\u306e\u914d\u5217\u306e\u6700\u521d\u306e\u884c\u306e\u6700\u521d\u306e\u8981\u7d20\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-eff23eaf91738d6ffb383949e4b70856_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 2 \\\\[1.1ex] 3 &amp; 4  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; -2 \\\\[1.1ex] 1 &amp; 5  \\end{pmatrix}  = \\begin{pmatrix} 1\\cdot 3 +2 \\cdot 1 &amp; \\\\[1.1ex] &amp; \\end{pmatrix} = \\begin{pmatrix} 5 &amp; \\\\[1.1ex] &amp; \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"370\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001<strong>\u6700\u521d\u306e\u884c\u3068 2 \u756a\u76ee\u306e\u5217\u3092\u4e57\u7b97\u3057\u3066\u3001<\/strong>\u7d50\u679c\u306e\u884c\u5217\u306e\u6700\u521d\u306e\u884c\u306e 2 \u756a\u76ee\u306e\u8981\u7d20\u3092\u53d6\u5f97\u3057\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-558838bcc38efc1aeeaf298d3e7151dc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 2 \\\\[1.1ex] 3 &amp; 4  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; -2 \\\\[1.1ex] 1 &amp; 5  \\end{pmatrix}  = \\begin{pmatrix} -1 &amp; 1\\cdot (-2) +2 \\cdot 5 \\\\[1.1ex] &amp; \\end{pmatrix} = \\begin{pmatrix}5 &amp; 8 \\\\[1.1ex] &amp; \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"429\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\"> 2 \u884c\u76ee\u306b\u79fb\u52d5\u3059\u308b\u306e\u3067\u3001 <strong>2 \u884c\u76ee\u306b\u6700\u521d\u306e\u5217\u3092\u4e57\u7b97\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-daab54a49cc53c320bb2965f691fd7ed_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 2 \\\\[1.1ex] 3 &amp; 4  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; -2 \\\\[1.1ex] 1 &amp; 5  \\end{pmatrix} = \\begin{pmatrix} -1 &amp; 8 \\\\[1.1ex] 3\\cdot 3 +4 \\cdot 1 &amp; \\end{pmatrix}= \\begin{pmatrix}5 &amp; 8 \\\\[1.1ex] 13 &amp; \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"396\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001 <strong>2 \u756a\u76ee\u306e\u884c\u3068 2 \u756a\u76ee\u306e\u5217<\/strong>\u3092\u4e57\u7b97\u3057\u3066\u3001\u30c6\u30fc\u30d6\u30eb\u306e\u6700\u5f8c\u306e\u8981\u7d20\u3092\u8a08\u7b97\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-a85e0d62a0db18c7712fd1b354f92bd5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 1 &amp; 2 \\\\[1.1ex] 3 &amp; 4  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; -2 \\\\[1.1ex] 1 &amp; 5  \\end{pmatrix}= \\begin{pmatrix} -1 &amp; 8 \\\\[1.1ex]1 &amp; 3\\cdot (-2) +4 \\cdot 5 \\end{pmatrix}=\\begin{pmatrix} 5 &amp; 8 \\\\[1.1ex] 13 &amp; 14 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"447\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u884c\u5217\u4e57\u7b97\u306e\u7d50\u679c\u306f\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-76f1283db0175bc1a95b0a10c8961761_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} \\bm{5} &amp; \\bm{8} \\\\[1.1ex]\\bm{13} &amp; \\bm{14} \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"72\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 2<\/h3>\n<p>\u6b21\u306e 2&#215;2 \u6b63\u65b9\u884c\u5217\u306e\u4e57\u7b97\u306e\u7d50\u679c\u3092\u6c42\u3081\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercice-resolu-de-multiplication-matricielle-22.webp\" alt=\"2x2 \u884c\u5217\u306e\u4e57\u7b97\u3001\u884c\u5217\u6f14\u7b97\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\" width=\"230\" height=\"70\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\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>\u89e3\u6c7a\u7b56\u3092\u53c2\u7167<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u3053\u308c\u306f 2\u00d72 \u6b21\u5143\u306e\u884c\u5217\u306e\u7a4d\u3067\u3059\u3002<\/p>\n<p class=\"has-text-align-left\">\u4e57\u7b97\u3092\u89e3\u304f\u306b\u306f\u3001\u5de6\u306e\u884c\u5217\u306e\u884c\u3068\u53f3\u306e\u884c\u5217\u306e\u5217\u3092\u4e57\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-fc7217dab49f67df2a9d2abc561baf9d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{aligned} \\begin{pmatrix} 4 &amp; -1  \\\\[1.1ex] -2 &amp; 3  \\end{pmatrix} \\cdot \\begin{pmatrix} -2 &amp; 5 \\\\[1.1ex] 6 &amp; -3  \\end{pmatrix}  &amp; = \\begin{pmatrix} 4\\cdot (-2)+(-1) \\cdot 6 &amp;  4\\cdot 5+(-1) \\cdot (-3)  \\\\[1.1ex](-2)\\cdot (-2)+3 \\cdot 6 &amp; (-2)\\cdot 5+3 \\cdot (-3)\\end{pmatrix} \\\\[2ex] &amp; =\\begin{pmatrix} \\bm{-14} &amp; \\bm{23} \\\\[1.1ex]\\bm{22} &amp; \\bm{-19} \\end{pmatrix} \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"129\" width=\"528\" style=\"vertical-align: 0px;\"><\/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-118\"><\/div>\n<\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 3<\/h3>\n<p>\u6b21\u306e 3&#215;3 \u884c\u5217\u306e\u4e57\u7b97\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercice-resolu-de-multiplication-matricielle-33.webp\" alt=\"3x3 \u884c\u5217\u306e\u4e57\u7b97\u3001\u884c\u5217\u6f14\u7b97\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\" width=\"277\" height=\"109\" srcset=\"\" sizes=\"auto, \"><\/figure>\n<\/div>\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>\u89e3\u6c7a\u7b56\u3092\u53c2\u7167<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">3\u00d73 \u884c\u5217\u306e\u4e57\u7b97\u3092\u5b9f\u884c\u3059\u308b\u306b\u306f\u3001\u5de6\u306e\u884c\u5217\u306e\u884c\u3068\u53f3\u306e\u884c\u5217\u306e\u5217\u3092\u4e57\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-ef6ee7bb6e4ac095a9fd51a545b163b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{array}{l} \\begin{pmatrix} 1 &amp; 2 &amp; 0 \\\\[1.1ex] 3 &amp; 2 &amp; -1 \\\\[1.1ex] 5 &amp; 1 &amp; -2  \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; 4 &amp; 0 \\\\[1.1ex] 1 &amp; 0 &amp; -2 \\\\[1.1ex] -1 &amp; 2 &amp; 1 \\end{pmatrix} = \\\\[7.5ex] =\\begin{pmatrix} 1 \\cdot 3+2 \\cdot 1+ 0 \\cdot (-1) &amp; 1 \\cdot 4+2 \\cdot 0+ 0 \\cdot 2 &amp; 1 \\cdot 0+2 \\cdot (-2)+ 0 \\cdot 1 \\\\[1.1ex] 3 \\cdot 3+2 \\cdot 1+ (-1) \\cdot (-1) &amp; 3 \\cdot 4+2 \\cdot 0+ (-1) \\cdot 2 &amp; 3 \\cdot 0+2 \\cdot (-2)+ (-1) \\cdot 1 \\\\[1.1ex] 5 \\cdot 3+1 \\cdot 1+ (-2) \\cdot (-1) &amp; 5 \\cdot 4+1 \\cdot 0+ (-2) \\cdot 2 &amp; 5 \\cdot 0+1 \\cdot (-2)+ (-2) \\cdot 1 \\end{pmatrix} = \\\\[7.5ex]  =\\begin{pmatrix} \\bm{5} &amp; \\bm{4} &amp; \\bm{-4} \\\\[1.1ex] \\bm{12} &amp; \\bm{10} &amp; \\bm{-5} \\\\[1.1ex] \\bm{18} &amp; \\bm{16} &amp; \\bm{-4} \\end{pmatrix}\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"306\" width=\"643\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 4<\/h3>\n<p>\u884c\u5217\u304c\u4e0e\u3048\u3089\u308c\u308b\u3068<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-25b206f25506e6d6f46be832f7119ffa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"13\" 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-27365f9993caf4fcdb747352e4ae539d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A= \\begin{pmatrix} 3 &amp; 1 &amp; -2 \\\\[1.1ex] 4 &amp; 2 &amp; -1   \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"134\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u8a08\u7b97\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-307d37497055a6891b797bdb89b456e8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle 2A\\cdot A^t\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"53\" 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>\u89e3\u6c7a\u7b56\u3092\u53c2\u7167<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u307e\u305a\u3001\u6b21\u306e\u8ee2\u7f6e\u884c\u5217\u3092\u8a08\u7b97\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-25b206f25506e6d6f46be832f7119ffa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"13\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u4e57\u7b97\u3092\u884c\u3046\u305f\u3081\u306b\u3002\u8ee2\u7f6e\u884c\u5217\u3092\u4f5c\u6210\u3059\u308b\u306b\u306f\u3001\u884c\u3092\u5217\u306b\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u884c\u5217\u306e 1 \u884c\u76ee\u306f\u884c\u5217\u306e 1 \u5217\u76ee\u306b\u306a\u308a\u3001\u884c\u5217\u306e 2 \u884c\u76ee\u306f\u884c\u5217\u306e 2 \u5217\u76ee\u306b\u306a\u308a\u307e\u3059\u3002\u307e\u3060\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ac4785c47f2e48e15b3d98ba426848b6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A^t= \\begin{pmatrix} 3 &amp; 4 \\\\[1.1ex] 1 &amp; 2  \\\\[1.1ex] -2 &amp; -1 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"85\" width=\"131\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u884c\u5217\u6f14\u7b97\u306f\u305d\u306e\u307e\u307e\u6b8b\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-9513fa8cc6996e18e3cf287f0210817a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle 2A\\cdot A^t = 2 \\begin{pmatrix} 3 &amp; 1 &amp; -2 \\\\[1.1ex] 4 &amp; 2 &amp; -1   \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; 4 \\\\[1.1ex] 1 &amp; 2  \\\\[1.1ex] -2 &amp; -1 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"85\" width=\"291\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u308c\u3067\u8a08\u7b97\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002\u307e\u305a\u8a08\u7b97\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-d4e94385e2fa1b091190a9ce266a8c43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"2A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"22\" style=\"vertical-align: 0px;\"><\/p>\n<p>(\u305f\u3060\u3057\u3001\u6700\u521d\u306b\u8a08\u7b97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ae92cabff7a388b31fe67b559dfead7d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"A \\cdot A^t\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"44\" 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-ae5e95f09aedac8f0861bf13fb9c78a4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  \\begin{pmatrix} 2 \\cdot 3 &amp; 2 \\cdot 1 &amp; 2 \\cdot (-2) \\\\[1.1ex] 2 \\cdot 4 &amp; 2 \\cdot 2 &amp; 2 \\cdot (-1) \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; 4 \\\\[1.1ex] 1 &amp; 2  \\\\[1.1ex] -2 &amp; -1 \\end{pmatrix} =\" title=\"Rendered by QuickLaTeX.com\" height=\"85\" width=\"299\" 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-24c003b8da1081d6ca494adc3356b06b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  =\\begin{pmatrix} 6 &amp; 2 &amp; -4 \\\\[1.1ex] 8 &amp; 4 &amp; -2 \\end{pmatrix} \\cdot \\begin{pmatrix} 3 &amp; 4 \\\\[1.1ex] 1 &amp; 2  \\\\[1.1ex] -2 &amp; -1 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"85\" width=\"220\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u6700\u5f8c\u306b\u3001\u884c\u5217\u306e\u7a4d\u3092\u89e3\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-0eb8f1817f0163a82ae39cc6c81d478e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  \\begin{pmatrix} 6 \\cdot 3 +2 \\cdot 1 + (-4) \\cdot (-2) &amp; 6 \\cdot 4 +2 \\cdot 2 + (-4) \\cdot (-1) \\\\[1.1ex] 8 \\cdot 3 +4 \\cdot 1 + (-2) \\cdot (-2) &amp; 8 \\cdot 4 +4 \\cdot 2 + (-2) \\cdot (-1) \\end{pmatrix} =\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"438\" 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-33533be747b72497915048e486d16541_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle = \\begin{pmatrix} \\bm{28} &amp; \\bm{32} \\\\[1.1ex]\\bm{32} &amp; \\bm{42} \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"94\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 5<\/h3>\n<p>\u6b21\u306e\u884c\u5217\u3092\u8003\u3048\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-6e26aec2eee6bcae0e344682d20038f2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A=\\begin{pmatrix} 2 &amp; 4  \\\\[1.1ex] -3 &amp; 5 \\end{pmatrix} \\qquad B=\\begin{pmatrix} -1 &amp; -2  \\\\[1.1ex] 3 &amp; -3 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"275\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u8a08\u7b97\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-78d69cf0ef5ec44cd0aacf00f4f2d613_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A\\cdot B - B \\cdot A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"102\" 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>\u89e3\u6c7a\u7b56\u3092\u53c2\u7167<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u3053\u308c\u306f\u3001\u6e1b\u7b97\u3068\u6b21\u6570 2 \u306e\u884c\u5217\u4e57\u7b97\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u6f14\u7b97\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-43f79f2d970bb02caaeddec34d5ad2a1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A\\cdot B - B \\cdot A= \\begin{pmatrix} 2 &amp; 4  \\\\[1.1ex] -3 &amp; 5 \\end{pmatrix}\\cdot \\begin{pmatrix} -1 &amp; -2  \\\\[1.1ex] 3 &amp; -3 \\end{pmatrix} - \\begin{pmatrix} -1 &amp; -2  \\\\[1.1ex] 3 &amp; -3 \\end{pmatrix}  \\cdot \\begin{pmatrix} 2 &amp; 4  \\\\[1.1ex] -3 &amp; 5 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"500\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u307e\u305a\u5de6\u5074\u306e\u4e57\u7b97\u3092\u8a08\u7b97\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-05ff586671fb0af274884169c54e5817_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 2\\cdot (-1) + 4 \\cdot 3 &amp; 2\\cdot (-2) + 4 \\cdot (-3) \\\\[1.1ex] (-3)\\cdot (-1) + 5 \\cdot 3 &amp; (-3)\\cdot (-2) + 5 \\cdot (-3)  \\end{pmatrix} - \\begin{pmatrix} -1 &amp; -2  \\\\[1.1ex] 3 &amp; -3 \\end{pmatrix}  \\cdot \\begin{pmatrix} 2 &amp; 4  \\\\[1.1ex] -3 &amp; 5 \\end{pmatrix} =\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"550\" 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-43c234a2d7aa4f9dcaf3140f617480f1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle= \\begin{pmatrix} 10 &amp; -16  \\\\[1.1ex] 18 &amp; -9 \\end{pmatrix} - \\begin{pmatrix} -1 &amp; -2  \\\\[1.1ex] 3 &amp; -3 \\end{pmatrix}  \\cdot \\begin{pmatrix} 2 &amp; 4  \\\\[1.1ex] -3 &amp; 5 \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"308\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u3053\u3067\u3001\u53f3\u5074\u306e\u4e57\u7b97\u3092\u89e3\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-552309dd1be2f69bb72633539809283b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 10 &amp; -16  \\\\[1.1ex] 18 &amp; -9 \\end{pmatrix} - \\begin{pmatrix} -1 \\cdot 2 +(-2) \\cdot (-3) &amp;  -1 \\cdot 4 +(-2) \\cdot 5  \\\\[1.1ex]3 \\cdot 2 +(-3) \\cdot (-3) &amp;  3 \\cdot 4 +(-3) \\cdot 5  \\end{pmatrix} =\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"449\" 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-eeac84965cc522402e869234a841ba67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle =\\begin{pmatrix} 10 &amp; -16  \\\\[1.1ex] 18 &amp; -9 \\end{pmatrix} - \\begin{pmatrix} 4 &amp;-14  \\\\[1.1ex]15 &amp; -3  \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"223\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u6700\u5f8c\u306b\u884c\u5217\u3092\u6e1b\u7b97\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-faefbc14fc49439616b3d131243eba79_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{pmatrix} 10-4 &amp; -16 -(-14) \\\\[1.1ex] 18-15 &amp; -9-(-3) \\end{pmatrix} =\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"214\" 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-50bac6ac99e1cf6e4b77a1a8718f9fe4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle =\\begin{pmatrix} \\bm{6} &amp; \\bm{-2} \\\\[1.1ex] \\bm{3} &amp; \\bm{-6} \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"90\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h2 class=\"wp-block-heading\">2 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3067\u304d\u306a\u3044\u306e\u306f\u3069\u306e\u3088\u3046\u306a\u5834\u5408\u3067\u3059\u304b?<\/h2>\n<p><strong>\u3059\u3079\u3066\u306e\u884c\u5217\u3092\u4e57\u7b97\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/strong> 2 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u306b\u306f\u3001\u6700\u521d\u306e\u884c\u5217\u306e\u5217\u6570\u304c 2 \u756a\u76ee\u306e\u884c\u5217\u306e\u884c\u6570\u3068\u4e00\u81f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6700\u521d\u306e\u884c\u5217\u306b\u306f 3 \u5217\u304c\u3042\u308a\u30012 \u756a\u76ee\u306e\u884c\u5217\u306b\u306f 2 \u884c\u304c\u3042\u308b\u305f\u3081\u3001\u6b21\u306e\u4e57\u7b97\u306f\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\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-b8314f9238afb3676bee5c9000c02752_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle\\begin{pmatrix} 1 &amp; 3 &amp; -2 \\\\[1.1ex] 4 &amp; 0 &amp; 5 \\end{pmatrix} \\cdot  \\begin{pmatrix} 2 &amp; 1  \\\\[1.1ex] 3 &amp; -1  \\end{pmatrix}  \\ \\longleftarrow \\ \\color{red} \\bm{\\times}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"274\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u3057\u304b\u3057\u3001\u9806\u5e8f\u3092\u9006\u306b\u3059\u308b\u3068\u3001\u305d\u308c\u3089\u3092\u4e57\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u6700\u521d\u306e\u884c\u5217\u306b\u306f 2 \u3064\u306e\u5217\u304c\u3042\u308a\u30012 \u756a\u76ee\u306e\u884c\u5217\u306b\u306f 2 \u3064\u306e\u884c\u304c\u3042\u308b\u305f\u3081\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-37d01cc99b578d3756312c3e6ff12cae_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{aligned} \\begin{pmatrix} 2 &amp; 1  \\\\[1.1ex] 3 &amp; -1  \\end{pmatrix} \\cdot \\begin{pmatrix} 1 &amp; 3 &amp; -2 \\\\[1.1ex] 4 &amp; 0 &amp; 5  \\end{pmatrix}  &amp; = \\begin{pmatrix} 2\\cdot 1 + 1 \\cdot 4 &amp; 2\\cdot 3 + 1 \\cdot 0 &amp; 2\\cdot (-2) + 1 \\cdot 5  \\\\[1.1ex] 3\\cdot 1 + (-1) \\cdot 4 &amp; 3\\cdot 3 + (-1) \\cdot 0 &amp; 3\\cdot (-2) + (-1) \\cdot 5   \\end{pmatrix} \\\\[2ex] &amp; = \\begin{pmatrix} \\bm{6} &amp; \\bm{6} &amp; \\bm{1}  \\\\[1.1ex]\\bm{-1} &amp; \\bm{9} &amp; \\bm{-11}   \\end{pmatrix}   \\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"129\" width=\"624\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\">\u884c\u5217\u4e57\u7b97\u306e\u30d7\u30ed\u30d1\u30c6\u30a3<\/h2>\n<p>\u3053\u306e\u30bf\u30a4\u30d7\u306e\u884c\u5217\u6f14\u7b97\u306b\u306f\u6b21\u306e\u7279\u5fb4\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u884c\u5217\u306e\u4e57\u7b97\u306f<strong><span style=\"color:#1976d2;\">\u7d50\u5408\u7684\u3067\u3059\u3002<\/span><\/strong><\/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-38541ff37ecadb79ac36ffb1e19cc187_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\left( A \\cdot B \\right) \\cdot C = A \\cdot \\left( B \\cdot C \\right)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"184\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<ul>\n<li>\u884c\u5217\u4e57\u7b97\u306b\u306f\u6b21\u306e\u3088\u3046\u306a<strong><span style=\"color:#1976d2;\">\u5206\u914d\u7279\u6027\u3082\u3042\u308a\u307e\u3059\u3002<\/span><\/strong> <\/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-1f8ca2784a9dd93cf71cd34d4d0303eb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A\\cdot \\left(B+C\\right) = A\\cdot B + A \\cdot C\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"216\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"adsb30\" style=\" margin:12px; text-align:center\">\n<div id=\"ezoic-pub-ad-placeholder-119\"><\/div>\n<\/div>\n<ul>\n<li>\u884c\u5217\u306e\u7a4d\u306f<strong><span style=\"color:#1976d2;\">\u53ef\u63db\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/span><\/strong><\/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-67f2cce38b1aab5659a5f888daf1ff84_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A \\cdot B \\neq B \\cdot A\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"104\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u884c\u5217\u4e57\u7b97\u306e\u7d50\u679c\u306f\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-3e780b321b160ad4a612e608199a374b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{aligned} \\begin{pmatrix} 1 &amp; -1  \\\\[1.1ex] 2 &amp; 3  \\end{pmatrix} \\cdot \\begin{pmatrix} -2 &amp; 5  \\\\[1.1ex] 0 &amp; 1   \\end{pmatrix}  &amp; = \\begin{pmatrix} 1\\cdot (-2) + (-1) \\cdot 0 &amp; 1\\cdot 5 + (-1) \\cdot 1   \\\\[1.1ex] 2\\cdot (-2) + 3 \\cdot 0 &amp;  2\\cdot 5 + 3 \\cdot 1    \\end{pmatrix} \\\\[2ex] &amp; = \\begin{pmatrix} \\bm{-2} &amp; \\bm{4} \\\\[1.1ex] \\bm{-4} &amp;  \\bm{13} \\end{pmatrix}\\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"129\" width=\"472\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u3057\u304b\u3057\u3001\u884c\u5217\u306e\u4e57\u7b97\u306e\u9806\u5e8f\u3092\u9006\u306b\u3059\u308b\u3068\u3001\u7a4d\u306e\u7d50\u679c\u306f\u7570\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-177d78a209e5d9e18828617e4913176d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle \\begin{aligned}\\begin{pmatrix} -2 &amp; 5  \\\\[1.1ex] 0 &amp; 1   \\end{pmatrix} \\cdot  \\begin{pmatrix} 1 &amp; -1  \\\\[1.1ex] 2 &amp; 3  \\end{pmatrix} &amp; = \\begin{pmatrix} -2 \\cdot 1 + 5\\cdot 2 &amp;  -2 \\cdot (-1) + 5\\cdot 3  \\\\[1.1ex] 0 \\cdot 1 + 1\\cdot 2 &amp;  0 \\cdot (-1) + 1\\cdot 3   \\end{pmatrix} \\\\[2ex] &amp; = \\begin{pmatrix} \\bm{8} &amp;  \\bm{17}  \\\\[1.1ex] \\bm{2} &amp;  \\bm{3} \\end{pmatrix}\\end{aligned}\" title=\"Rendered by QuickLaTeX.com\" height=\"129\" width=\"445\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<ul>\n<li>\u3055\u3089\u306b\u3001\u884c\u5217\u306b\u5358\u4f4d\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u3068\u3001\u7d50\u679c\u306f\u540c\u3058\u884c\u5217\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f<strong><span style=\"color:#1976d2;\">\u4e57\u6cd5\u6052\u7b49\u6027\u30d7\u30ed\u30d1\u30c6\u30a3\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/span><\/strong><\/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-7ab05972282922f1e10f75a50e636887_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A \\cdot I=A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"72\" 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-2c32986a7c34108a47500a4f0ec2967b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle I \\cdot A=A\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"72\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4f8b\u3048\u3070\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9c1e72173419eb76554256cf6ccd0d2f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  \\begin{pmatrix} 2 &amp; 7  \\\\[1.1ex] -6 &amp; 5  \\end{pmatrix} \\cdot \\begin{pmatrix} 1 &amp; 0  \\\\[1.1ex] 0 &amp; 1 \\end{pmatrix} = \\begin{pmatrix} \\bm{2} &amp; \\bm{7}  \\\\[1.1ex] \\bm{-6} &amp; \\bm{5}  \\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"242\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<ul>\n<li>\u6700\u5f8c\u306b\u3001\u3059\u3067\u306b\u3054\u60f3\u50cf\u306e\u3068\u304a\u308a\u3001\u884c\u5217\u306b\u30bc\u30ed\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u3068\u3001\u884c\u5217\u306f\u30bc\u30ed\u884c\u5217\u306b\u7b49\u3057\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u306f<strong><span style=\"color:#1976d2;\">\u30bc\u30ed\u306e\u4e57\u6cd5\u7684\u6027\u8cea\u3068\u547c\u3070\u308c\u307e\u3059\u3002<\/span><\/strong><\/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-cf700c38f25e0c3bdf1c46851341a815_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle A \\cdot 0=0\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"68\" 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-ac3340bc96ba3df60f6ddeb6bbd3b4b8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle 0\\cdot A=0\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"68\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4f8b\u3048\u3070\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3152d82054a80d61d548e969290aea4c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle  \\begin{pmatrix} 6 &amp; -4  \\\\[1.1ex] 3 &amp; 8  \\end{pmatrix} \\cdot \\begin{pmatrix} 0 &amp; 0  \\\\[1.1ex] 0 &amp; 0 \\end{pmatrix} = \\begin{pmatrix} \\bm{0} &amp; \\bm{0}  \\\\[1.1ex] \\bm{0} &amp; \\bm{0}\\end{pmatrix}\" title=\"Rendered by QuickLaTeX.com\" height=\"54\" width=\"228\" style=\"vertical-align: 0px;\"><\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u30012\u00d72\u30013\u00d73\u30014\u00d74\u306a\u3069\u306e\u6b21\u5143\u306e\u884c\u5217\u3092\u4e57\u7b97\u3059\u308b\u65b9\u6cd5\u3092\u898b\u3066\u3044\u304d\u307e\u3059\u3002\u884c\u5217\u306e\u4e57\u7b97\u306e\u624b\u9806\u3092\u4f8b\u3092\u4f7f\u3063\u3066\u6bb5\u968e\u7684\u306b\u8aac\u660e\u3057\u3001\u89e3\u6c7a\u6e08\u307f\u306e\u7df4\u7fd2\u554f\u984c\u3082\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u7df4\u7fd2\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u6700\u5f8c\u306b\u30012 \u3064\u306e\u884c\u5217\u3092\u4e57\u7b97\u3067 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ja\/2x2-%e8%a1%8c%e5%88%97%e3%81%a8-3x3-%e8%a1%8c%e5%88%97%e3%81%ae%e4%b9%97%e7%ae%97%e3%81%ae%e4%be%8b%e3%81%a8%e6%bc%94%e7%bf%92%e3%82%92%e6%ae%b5%e9%9a%8e%e7%9a%84%e3%81%ab%e8%a7%a3%e6%b1%ba\/\"> <span class=\"screen-reader-text\">\u884c\u5217\u4e57\u7b97<\/span> \u3082\u3063\u3068\u8aad\u3080 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