{"id":3928,"date":"2025-12-04T19:02:29","date_gmt":"2025-12-04T10:02:29","guid":{"rendered":"https:\/\/lanqiu.aboutphlaw.com\/?p=3928"},"modified":"2025-12-04T19:02:29","modified_gmt":"2025-12-04T10:02:29","slug":"understanding-importance-of-3x3-determinant-in-mathematics","status":"publish","type":"post","link":"https:\/\/lanqiu.aboutphlaw.com\/3x3\/understanding-importance-of-3x3-determinant-in-mathematics","title":{"rendered":"3×3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3×3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066"},"content":{"rendered":"

1. \u306f\u3058\u3081\u306b<\/h4>\n

\u884c\u5217\u5f0f\u306f\u7dda\u5f62\u4ee3\u6570\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3042\u308a\u3001\u7279\u306b3×3\u884c\u5217\u306e\u884c\u5217\u5f0f\uff08determinant of 3×3\uff09\u306f\u591a\u304f\u306e\u6570\u5b66\u7684\u554f\u984c\u3084\u5fdc\u7528\u306b\u304a\u3044\u3066\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u3053\u306e\u6587\u7ae0\u3067\u306f\u30013×3\u884c\u5217\u306e\u884c\u5217\u5f0f\u306e\u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u305d\u3057\u3066\u305d\u306e\u6570\u5b66\u7684\u306a\u610f\u7fa9\u306b\u3064\u3044\u3066\u63a2\u6c42\u3057\u307e\u3059\u3002<\/p>\n

2. 3×3\u884c\u5217\u306e\u884c\u5217\u5f0f\u306e\u5b9a\u7fa9<\/h4>\n

3×3\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u3001\u884c\u5217\u306e\u69cb\u9020\u3092\u8868\u3059\u30b9\u30ab\u30e9\u30fc\u5024\u3067\u3042\u308a\u3001\u884c\u5217\u306e\u9006\u884c\u5217\u306e\u5b58\u5728\u3084\u7dda\u5f62\u72ec\u7acb\u6027\u3092\u5224\u5b9a\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u4e00\u822c\u7684\u306a3×3\u306e\u884c\u5217\u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059<\/p>\n

A = \\(\\beginbmatrix a_11 & a_12 & a_13 \\\\ a_21 & a_22 & a_23 \\\\ a_31 & a_32 & a_33 \\endbmatrix\\)<\/p>\n

\u3053\u306e\u884c\u5217\u306e\u884c\u5217\u5f0f\uff08det(A)\uff09\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059<\/p>\n

det(A) = \\(a_11(a_22a_33 – a_23a_32) – a_12(a_21a_33 – a_23a_31) + a_13(a_21a_32 – a_22a_31)\\)<\/p>\n

\u3053\u306e\u516c\u5f0f\u306f\u30013\u3064\u306e\u884c\u3084\u5217\u306e\u7d44\u307f\u5408\u308f\u305b\u3092\u4f7f\u3063\u305f\u7b26\u53f7\u3068\u7a4d\u306e\u548c\u3092\u542b\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n

3. \u884c\u5217\u5f0f\u306e\u8a08\u7b97\u65b9\u6cd5<\/h4>\n

\u884c\u5217\u5f0f\u3092\u8a08\u7b97\u3059\u308b\u969b\u3001\u4e00\u822c\u7684\u306b\u306f\u30e9\u30d7\u30e9\u30b9\u5c55\u958b\u3092\u7528\u3044\u308b\u304b\u3001\u30b5\u30e9\u30b9\u306e\u6cd5\u5247\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u30b5\u30e9\u30b9\u306e\u6cd5\u5247\u306f\u7279\u306b3×3\u884c\u5217\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u4fbf\u5229\u3067\u3042\u308a\u3001\u76f4\u611f\u7684\u306b\u7406\u89e3\u3067\u304d\u308b\u65b9\u6cd5\u3067\u3059\u3002\u30b5\u30e9\u30b9\u306e\u6cd5\u5247\u3092\u5229\u7528\u3059\u308b\u305f\u3081\u306b\u306f\u3001\u884c\u5217\u306e\u8981\u7d20\u3092\u6b63\u65b9\u5f62\u306e\u5f62\u306b\u914d\u7f6e\u3057\u3001\u5bfe\u89d2\u7dda\u3092\u5f15\u304f\u3053\u3068\u3067\u8a08\u7b97\u3092\u884c\u3044\u307e\u3059\u3002\u3053\u306e\u8996\u899a\u7684\u306a\u30a2\u30d7\u30ed\u30fc\u30c1\u306f\u5b66\u7fd2\u8005\u306b\u3068\u3063\u3066\u975e\u5e38\u306b\u6709\u76ca\u3067\u3059\u3002<\/p>\n

4. \u884c\u5217\u5f0f\u306e\u5fdc\u7528<\/h4>\n

3×3\u884c\u5217\u306e\u884c\u5217\u5f0f\u306f\u3001\u69d8\u3005\u306a\u5206\u91ce\u3067\u5fdc\u7528\u3055\u308c\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u7269\u7406\u5b66\u306b\u304a\u3044\u3066\u306f\u3001\u529b\u306e\u5e73\u8861\u306e\u8a08\u7b97\u3084\u4e09\u6b21\u5143\u7a7a\u9593\u3067\u306e\u5909\u63db\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u307e\u305f\u3001\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u30b9\u306b\u304a\u3044\u3066\u306f\u30013D\u30ec\u30f3\u30c0\u30ea\u30f3\u30b0\u306e\u969b\u306b\u5ea7\u6a19\u5909\u63db\u3092\u884c\u3046\u305f\u3081\u306e\u57fa\u790e\u8cc7\u6599\u3068\u3057\u3066\u5229\u7528\u3055\u308c\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u7d4c\u6e08\u5b66\u3084\u6700\u9069\u5316\u554f\u984c\u306b\u3082\u884c\u5217\u5f0f\u304c\u95a2\u4e0e\u3057\u3066\u304a\u308a\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u5b89\u5b9a\u6027\u3092\u89e3\u6790\u3059\u308b\u969b\u306e\u91cd\u8981\u306a\u30c4\u30fc\u30eb\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

5. \u307e\u3068\u3081<\/h4>\n

3×3\u884c\u5217\u306e\u884c\u5217\u5f0f\uff08determinant of 3×3\uff09\u306f\u3001\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u5b9a\u7fa9\u3084\u8a08\u7b97\u65b9\u6cd5\u306f\u3001\u591a\u304f\u306e\u6570\u7406\u7684\u5fdc\u7528\u306b\u76f4\u63a5\u95a2\u9023\u3057\u3066\u304a\u308a\u3001\u7279\u306b\u7dda\u5f62\u4ee3\u6570\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u8981\u7d20\u3067\u3059\u3002\u884c\u5217\u5f0f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u6570\u5b66\u306b\u304a\u3051\u308b\u69d8\u3005\u306a\u554f\u984c\u306b\u5bfe\u3059\u308b\u6d1e\u5bdf\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u3057\u3063\u304b\u308a\u3068\u5b66\u7fd2\u3059\u308b\u3053\u3068\u304c\u63a8\u5968\u3055\u308c\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30bf\u30a4\u30c8\u30eb3×3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3×3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066<\/p>\n","protected":false},"author":1,"featured_media":1043,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[4755,4990,5037],"class_list":["post-3928","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-3x3","tag-4755","tag-4990","tag--3x3"],"yoast_head":"\n3x3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3x3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP<\/title>\n<meta name=\"description\" content=\"\u30bf\u30a4\u30c8\u30eb3x3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3x3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/understanding-importance-of-3x3-determinant-in-mathematics\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3x3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3x3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066 - \u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP\" \/>\n<meta property=\"og:description\" content=\"\u30bf\u30a4\u30c8\u30eb3x3\u884c\u5217\u306e\u6c7a\u5b9a\u56e0\u5b50\u6570\u5b66\u306e\u57fa\u790e\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u306edeterminant of 3x3\u306e\u91cd\u8981\u6027\u306b\u3064\u3044\u3066\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lanqiu.aboutphlaw.com\/3x3\/understanding-importance-of-3x3-determinant-in-mathematics\" \/>\n<meta property=\"og:site_name\" content=\"\u6700\u65b0\u30b9\u30dd\u30fc\u30c4\u30cb\u30e5\u30fc\u30b9 -\u30d0\u30b9\u30b1\u30c3\u30c8\u30dc\u30fc\u30eb\u306e\u30cb\u30e5\u30fc\u30b9- \u30b9\u30dd\u30fc\u30c4\u30a4\u30d9\u30f3\u30c8\u30cb\u30e5\u30fc\u30b9\u30b5\u30a4\u30c8-CSPORTS.JP\" \/>\n<meta property=\"article:published_time\" 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