{"id":5301,"date":"2025-01-01T20:03:03","date_gmt":"2025-01-01T11:03:03","guid":{"rendered":"https:\/\/torisetudy.com\/?p=5301"},"modified":"2026-07-16T10:38:51","modified_gmt":"2026-07-16T01:38:51","slug":"%e3%83%99%e3%82%af%e3%83%88%e3%83%ab%e3%81%ae%e5%9f%ba%e6%9c%ac%e6%bc%94%e7%ae%97","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=5301","title":{"rendered":"\u30d9\u30af\u30c8\u30eb\u306e\u57fa\u672c\u6f14\u7b97"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u306e\u5b9a\u7fa9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5411\u304d\u3092\u542b\u3081\u305f\u8b70\u8ad6<\/h3>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u300c\u5411\u304d\u300d\u3092\u3064\u3051\u305f\u7dda\u5206\u306b\u3064\u3044\u3066\u8003\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7dda\u5206 $\\rmA\\rmB$ \u306b $\\rmA$ \u304b\u3089 $\\rmB$ \u3078\u306e\u5411\u304d\u3092\u3064\u3051\u3066\u8003\u3048\u308b\u3068\u304d\uff0c\u3053\u308c\u3092<span class=\"st-mymarker-s\">\u6709\u5411\u7dda\u5206 $\\rmA\\rmB$<\/span> \u3068\u3044\u3044\uff0c$\\rmA$ \u3092<span class=\"st-mymarker-s\">\u59cb\u70b9<\/span>\uff0c$\\rmB$ \u3092<span class=\"st-mymarker-s\">\u7d42\u70b9<\/span>\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"151\" height=\"86\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66191.svg\" alt=\"\" class=\"wp-image-5347\"\/><noscript><img decoding=\"async\" width=\"151\" height=\"86\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66191.svg\" alt=\"\" class=\"wp-image-5347\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u5411\u7dda\u5206\u306f\u300c\u4f4d\u7f6e\u300d\u300c\u5411\u304d\u300d\u300c\u5927\u304d\u3055\uff08\u9577\u3055\uff09\u300d\u306e3\u3064\u306e\u8981\u7d20\u304c\u3042\u308a\u307e\u3059\u304c\uff0c\u300c\u4f4d\u7f6e\u300d\u3092\u7121\u8996\u3057\u3066\u300c\u5411\u304d\u300d\u3068\u300c\u5927\u304d\u3055\u300d\u306e2\u3064\u306e\u8981\u7d20\u3060\u3051\u3092\u8003\u3048\u305f\u91cf\u3092<span class=\"st-mymarker-s\">\u30d9\u30af\u30c8\u30eb<\/span>\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u306e\u8868\u8a18<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6709\u5411\u7dda\u5206 $\\rmA\\rmB$ \u3067\u8868\u3055\u308c\u308b\u30d9\u30af\u30c8\u30eb\u3092 <span class=\"st-mymarker-s\">$\\vec{\\rmA\\rmB}$<\/span> \u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"182\" height=\"116\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66192.svg\" alt=\"\" class=\"wp-image-5348\"\/><noscript><img decoding=\"async\" width=\"182\" height=\"116\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66192.svg\" alt=\"\" class=\"wp-image-5348\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u56f3\u306e $\\rmA\\rmB$ \u3068 $\\rmC\\rmD$ \u306f\u4f4d\u7f6e\u306f\u9055\u3044\u307e\u3059\u304c\uff0c\u5411\u304d\u3068\u5927\u304d\u3055\u306f\u540c\u3058\u306a\u306e\u3067\uff0c$\\vec{\\rmA\\rmB}$ \u3068 $\\vec{\\rmC\\rmD}$ \u306f\u540c\u3058\u30d9\u30af\u30c8\u30eb\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3068\u304d\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmA\\rmB}=\\vec{\\rmC\\rmD}$$\u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon4 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u4ed6\u306e\u8868\u8a18\u3082\u30c1\u30a7\u30c3\u30af\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb\u306f\uff0c\u59cb\u70b9\u3068\u7d42\u70b9\u3092\u7279\u306b\u660e\u793a\u305b\u305a\u306b\uff0c$\\vec{a}$ \u306e\u3088\u3046\u306b\u8868\u3059\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002<br><br>\u307e\u305f\uff0c\u30d9\u30af\u30c8\u30eb\u306e\u5927\u304d\u3055\u3092\u8868\u3059\u3068\u304d\u306f\uff0c$\\left|\\vec{\\rmA\\rmB}\\right|$ \u3084 $\\left|\\vec{a}\\right|$ \u306e\u3088\u3046\u306b\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u306e\u52a0\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u548c\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">$\\vec{a}=\\vec{\\rmO\\rmA}$\uff0c$\\vec{b}=\\vec{\\rmA\\rmC}$ \u3068\u3059\u308b\u3068\u304d\uff0c$\\vec{\\rmO\\rmC}$ \u3092 <span class=\"st-mymarker-s\">$\\vec{a}$ \u3068 $\\vec{b}$ \u306e\u548c<\/span>\u3068\u3044\u3044\uff0c<span class=\"st-mymarker-s\">$\\vec{a}+\\vec{b}$<\/span> \u3068\u304b\u304d\u307e\u3059\u3002\u3064\u307e\u308a\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmO\\rmC}=\\vec{\\rmO\\rmA}+\\vec{\\rmA\\rmC}$$\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"181\" height=\"129\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66194.svg\" alt=\"\" class=\"wp-image-5350\"\/><noscript><img decoding=\"async\" width=\"181\" height=\"129\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66194.svg\" alt=\"\" class=\"wp-image-5350\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u5c11\u3057\u53e3\u8a9e\u7684\u306a\u8aac\u660e\u3092\u3059\u308b\u3068\uff0c\u300c\u30d9\u30af\u30c8\u30eb\u306f\u5bc4\u308a\u9053\u3092\u3057\u3066\u3082\uff0c\u30b9\u30bf\u30fc\u30c8\u3068\u30b4\u30fc\u30eb\u304c\u540c\u3058\u3067\u3042\u308c\u3070\uff0c\u540c\u3058\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3059\u300d\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002$\\vec{\\rmO\\rmC}$ \u306f $\\rmO$ \u304c\u30b9\u30bf\u30fc\u30c8\uff0c$\\rmC$ \u304c\u30b4\u30fc\u30eb\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\uff0c$\\vec{\\rmO\\rmA}+\\vec{\\rmA\\rmC}$ \u306f\u300c$\\rmO$ \u304b\u3089 $\\rmA$ \u306b\u884c\u304d\uff0c$\\rmA$ \u304b\u3089 $\\rmC$ \u306b\u884c\u3063\u305f\u30d9\u30af\u30c8\u30eb\u300d\u3067\u3059\u304b\u3089\uff0c\u3053\u3061\u3089\u3082 $\\rmO$ \u304c\u30b9\u30bf\u30fc\u30c8\u3067 $\\rmC$ \u304c\u30b4\u30fc\u30eb\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u5e73\u884c\u56db\u8fba\u5f62\u3067\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\uff0c\u56f3\u306e\u3088\u3046\u306b\u5e73\u884c\u56db\u8fba\u5f62 $\\rmO\\rmA\\rmC\\rmB$ \u3092\u8003\u3048\u308b\u3068\uff0c$\\vec{\\rmO\\rmB}=\\vec{b}$\uff0c$\\vec{\\rmB\\rmC}=\\vec{a}$ \u3068\u306a\u308a\u307e\u3059\u3002$\\rmO$ \u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3066 $\\rmC$ \u3067\u30b4\u30fc\u30eb\u306e\u30d9\u30af\u30c8\u30eb\uff0c\u3064\u307e\u308a $\\vec{\\rmO\\rmC}$ \u306f\uff0c$\\vec{\\rmO\\rmB}+\\vec{\\rmB\\rmC}$ \u3068\u8868\u3059\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3089\u306e\u3053\u3068\u304b\u3089\uff0c\u30d9\u30af\u30c8\u30eb\u306f\u4e0b\u8a18\u306e\u6027\u8cea\u3092\u3082\u3064\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u30d9\u30af\u30c8\u30eb\u306e\u57fa\u672c\u6027\u8cea\u2460<\/p><div class=\"st-in-mybox\">\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306e\u6027\u8cea\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 wp-block-paragraph\">$$\\begin{aligned}&amp;\\vec{a}+\\vec{b}=\\vec{b}+\\vec{a}\\stext{\u3000\uff08\u4ea4\u63db\u6cd5\u5247\uff09}\\\\&amp;\\left(\\vec{a}+\\vec{b}\\right)+\\vec{c}=\\vec{a}+\\left(\\vec{b}+\\vec{c}\\right)\\stext{\u3000\uff08\u7d50\u5408\u6cd5\u5247\uff09}\\end{aligned}$$<\/p>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb\u306e\u52a0\u6cd5\u306b\u95a2\u3057\u3066\u306f\u300c\u3057\u308a\u3068\u308a\u300d\u306e\u3088\u3046\u306b\u8003\u3048\u308b\u3068\u30a4\u30e1\u30fc\u30b8\u304c\u3057\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmP\\stext{\u25a0}}+\\vec{\\stext{\u25a0}\\rmQ}=\\vec{\\rmP\\rmQ}$$\u3068\u3044\u3063\u305f\u30a4\u30e1\u30fc\u30b8\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u9006\u30d9\u30af\u30c8\u30eb\u3068\u96f6\u30d9\u30af\u30c8\u30eb<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9006\u30d9\u30af\u30c8\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb $\\vec{a}$ \u3068\u5927\u304d\u3055\u304c\u7b49\u3057\u304f\uff0c\u5411\u304d\u304c\u53cd\u5bfe\u3067\u3042\u308b\u30d9\u30af\u30c8\u30eb\u3092 $\\vec{a}$ \u306e<span class=\"st-mymarker-s\">\u9006\u30d9\u30af\u30c8\u30eb<\/span>\u3068\u3044\u3044\uff0c<span class=\"st-mymarker-s\">$-\\vec{a}$<\/span> \u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"154\" height=\"77\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66196.svg\" alt=\"\" class=\"wp-image-5337\"\/><noscript><img decoding=\"async\" width=\"154\" height=\"77\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66196.svg\" alt=\"\" class=\"wp-image-5337\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">$\\vec{a}=\\vec{\\rmA\\rmB}$ \u3068\u3059\u308b\u3068\uff0c$-\\vec{a}=\\vec{\\rmB\\rmA}$ \u3059\u306a\u308f\u3061\uff0c$\\vec{\\rmB\\rmA}=-\\vec{\\rmA\\rmB}$ \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u96f6\u30d9\u30af\u30c8\u30eb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb $\\vec{\\rmA\\rmA}$ \u306e\u3088\u3046\u306b\u59cb\u70b9\u3068\u7d42\u70b9\u304c\u4e00\u81f4\u3057\u3066\u3044\u308b\u30d9\u30af\u30c8\u30eb\u306f\uff0c\u5927\u304d\u3055\u304c $0$ \u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306a\u30d9\u30af\u30c8\u30eb\u3092<span class=\"st-mymarker-s\">\u96f6\u30d9\u30af\u30c8\u30eb\uff08\u30bc\u30ed\u30d9\u30af\u30c8\u30eb\uff09<\/span>\u3068\u3044\u3044\uff0c<span class=\"st-mymarker-s\">$\\vec{0}$<\/span> \u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u3048\u3063!? \u5927\u304d\u3055\u304c $0$ \u3063\u3066\uff0c\u5411\u304d\u3082\u7121\u304f\u3066\u5927\u304d\u3055\u3082 $0$ \u306a\u306e\u306b\uff0c\u30d9\u30af\u30c8\u30eb\u3063\u3066\u8a00\u3046\u306e\uff1f\u300d\u3068\u3044\u3046\u7591\u554f\u3082\u3042\u308b\u3067\u3057\u3087\u3046\u304c\uff0c\u30bc\u30ed\u30d9\u30af\u30c8\u30eb\u3092\u5b9a\u7fa9\u3057\u3066\u304a\u304f\u3068\u3068\u3066\u3082\u4fbf\u5229\u306a\u3093\u3067\u3059\uff01<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u7279\u6b8a\u306a\u30d9\u30af\u30c8\u30eb\u3068\u3057\u3066\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u308c\u3088\u308a\uff0c\u4e0b\u8a18\u306e\u6027\u8cea\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u30d9\u30af\u30c8\u30eb\u306e\u6027\u8cea\u2461<\/p><div class=\"st-in-mybox\">\n<p class=\"wp-block-paragraph\">\u4ee5\u4e0b\u306e\u6027\u8cea\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 wp-block-paragraph\">$$\\begin{aligned}\\vec{a}+\\left(-\\vec{a}\\right)&amp;=\\vec{0}\\\\\\vec{a}+\\vec{0}&amp;=\\vec{a}\\end{aligned}$$<\/p>\n<\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u3068\u30b9\u30ab\u30e9\u30fc<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u30b9\u30ab\u30e9\u30fc\u3068\u306f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb\u3068\u3044\u3046\u306e\u306f\uff0c\u5411\u304d\u3068\u5927\u304d\u3055\u3092\u3082\u3063\u305f\u91cf\u3067\u3059\u304c\uff0c\u5358\u7d14\u306b\u5927\u304d\u3055\u3060\u3051\u3092\u8003\u3048\u308b\u3053\u3068\u304c\u3057\u3070\u3057\u3070\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30b5\u30a4\u30a8\u30f3\u30b9\u306e\u4e16\u754c\u3067\u306f\uff0c\u30d9\u30af\u30c8\u30eb\u3068\u533a\u5225\u3059\u308b\u305f\u3081\u306b\u5927\u304d\u3055\u3060\u3051\u3092\u8868\u3059\u91cf\u3092<span class=\"st-mymarker-s\">\u30b9\u30ab\u30e9\u30fc<\/span>\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon3 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u4eca\u307e\u3067\u666e\u901a\u306b\u6271\u3063\u3066\u304d\u305f\u6570\u5b57\u306f\u3059\u3079\u3066\u30b9\u30ab\u30e9\u30fc\u3067\u3059\uff01<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u30d9\u30af\u30c8\u30eb\u3068\u30b9\u30ab\u30e9\u30fc<\/p><div class=\"st-in-mybox\">\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 wp-block-paragraph\">$$\\begin{aligned}\\stext{\u30d9\u30af\u30c8\u30eb}&amp;\\stext{\uff1a\u5909\u4f4d\uff0c\u901f\u5ea6\uff0c\u52a0\u901f\u5ea6\uff0c\u529b\uff0c\u529b\u7a4d\u306a\u3069}\\\\\\stext{\u30b9\u30ab\u30e9\u30fc}&amp;\\stext{\uff1a\u9577\u3055\uff0c\u9762\u7a4d\uff0c\u901f\u3055\uff0c\u4ed5\u4e8b\uff0c\u30a8\u30cd\u30eb\u30ae\u30fc\u306a\u3069}\\end{aligned}$$<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u6ce8\u610f\u70b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">$\\vec{a}+\\left(-\\vec{a}\\right)$ \u306f $\\vec{0}$ \uff08\u30d9\u30af\u30c8\u30eb\uff09\u306b\u306a\u308a\u307e\u3059\u304c\uff0c$0$\uff08\u30b9\u30ab\u30e9\u30fc\uff09\u306b\u306f\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u308c\u306f\uff0c$\\vec{a}$ \u3068 $-\\vec{a}$ \u3068\u3044\u30462\u3064\u306e\u30d9\u30af\u30c8\u30eb\u3069\u3046\u3057\u306e\u52a0\u6cd5\u3067\u3042\u308a\uff0c$\\vec{a}+\\left(-\\vec{a}\\right)$ \u3068\u3044\u3046\u5024\u306f\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3057\u3066\u3044\u308b\u304b\u3089\u3067\u3059\u3002$\\vec{0}$ \u3092\u5c0e\u5165\u3059\u308b\u306e\u3082\uff0c\u3053\u3046\u3044\u3063\u305f\u80cc\u666f\u304c\u3042\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u306e\u6e1b\u6cd5<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u56f3\u5f62\u3067\u306e\u78ba\u8a8d<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">$\\vec{a}=\\vec{\\rmO\\rmA}$\uff0c$\\vec{b}=\\vec{\\rmO\\rmB}$ \u3068\u3059\u308b\u3068\u304d\uff0c$\\vec{a}-\\vec{b}$ \u3092 $\\vec{a}+\\left(-\\vec{b}\\right)$ \u3068\u5b9a\u7fa9\u3057\u3066\uff0c\u3053\u308c\u306e\u56f3\u5f62\u7684\u306a\u610f\u5473\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"173\" height=\"179\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66197.svg\" alt=\"\" class=\"wp-image-5338\"\/><noscript><img decoding=\"async\" width=\"173\" height=\"179\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66197.svg\" alt=\"\" class=\"wp-image-5338\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u56f3\u5f62\u3088\u308a\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\begin{aligned} \\vec{a}-\\vec{b}&amp;=\\vec{a}+\\left(-\\vec{b}\\right)\\\\ &amp;=\\vec{\\rmO\\rmA}+\\vec{\\rmA\\rmC}=\\vec{\\rmO\\rmC} \\end{aligned}$$\u3068\u306a\u308a\u307e\u3059\u306e\u3067\uff0c$\\vec{a}-\\vec{b}$ \u306f\uff0c\u56f3\u306e $\\vec{\\rmO\\rmC}$ \u3092\u8868\u3059\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb\u306e\u4f4d\u7f6e\u306f\u81ea\u7531\u306b\u8a2d\u5b9a\u3067\u304d\u307e\u3059\u3002$\\vec{\\rmO\\rmC}=\\vec{\\rmB\\rmA}$ \u3067\u3059\u304b\u3089\uff0c$\\vec{a}-\\vec{b}=\\vec{\\rmB\\rmA}$ \u3068\u8003\u3048\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u306d\u3002\u307e\u305f\uff0c$\\vec{b}+\\vec{\\rmB\\rmA}=\\vec{a}$ \u304c\u6210\u308a\u7acb\u3064\u3053\u3068\u304b\u3089\u3082\uff0c$\\vec{\\rmB\\rmA}=\\vec{a}-\\vec{b}$ \u3068\u306a\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\uff0c\u30d9\u30af\u30c8\u30eb\u306e\u5dee\u306f\u300c\u7d42\u70b9\u306e2\u70b9\u3092\u7d50\u3076\u30d9\u30af\u30c8\u30eb\u300d\u3068\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002$\\vec{\\rmB\\rmA}$ \u3092 $\\vec{a}-\\vec{b}$ \u306e\u3088\u3046\u306b\u5dee\u306e\u5f62\u3067\u8868\u3059\u3053\u3068\u306f\u3068\u3066\u3082\u91cd\u8981\u3067\u3059\u3002$\\vec{\\rmB\\rmA}$ \u306b\u3064\u3044\u3066\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmB\\rmA}=\\vec{a}-\\vec{b}=\\vec{\\rmO\\rmA}-\\vec{\\rmO\\rmB}$$\u3067\u3042\u308a\uff0c\u59cb\u70b9\u304c\u305d\u308d\u3063\u3066\u3044\u308b2\u3064\u306e\u30d9\u30af\u30c8\u30eb $\\vec{\\rmO\\rmA}$ \u3068 $\\vec{\\rmO\\rmB}$ \u3092\u7528\u3044\u3066\u8868\u305b\u3066\u3044\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\uff0c1\u3064\u306e\u30d9\u30af\u30c8\u30eb\u3092\u59cb\u70b9\u304c\u305d\u308d\u3063\u305f2\u3064\u306e\u30d9\u30af\u30c8\u30eb\u3067\u8868\u305b\u308b\u3068\uff0c\u69d8\u3005\u306a\u30e1\u30ea\u30c3\u30c8\u304c\u3042\u308a\u307e\u3059\u3002\u8a73\u3057\u304f\u306f\u66f8\u7c4d\u300c\u6570\u5b66\u306e\u30c8\u30ea\u30bb\u30c4\u300d\u306e\u30d9\u30af\u30c8\u30eb\u306e\u7ae0\u3067\u2026\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5dee\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1\u3064\u306e\u30d9\u30af\u30c8\u30eb\u30922\u3064\u306e\u30d9\u30af\u30c8\u30eb\u306e\u5dee\u3067\u8868\u3059\u3068\u304d\u306f\uff0c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmP\\rmQ}=\\vec{\\stext{\u25a0}\\rmQ}-\\vec{\\stext{\u25a0}\\rmP}$$\u306e\u5f62\u3067\u3059\u3002\u305f\u3068\u3048\u3070\uff0c$\\vec{\\rmP\\rmQ}$ \u3092 $\\vec{\\rmO\\rmP}$\uff0c$\\vec{\\rmO\\rmQ}$ \u3067\u8868\u3059\u5834\u5408\uff0c<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$\\vec{\\rmP\\rmQ}=\\vec{\\rmP\\rmO}+\\vec{\\rmO\\rmQ}=-\\vec{\\rmO\\rmP}+\\vec{\\rmO\\rmQ}=\\vec{\\rmO\\rmQ}-\\vec{\\rmO\\rmP}$$\u3068\u306a\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30e1\u30fc\u30b8\u3068\u3057\u3066\u306f\uff0c$\\vec{\\rmP\\rmQ}$ \u306e $\\rmP$ \u3092\u300c\u982d\u300d\uff0c$\\rmQ$ \u3092\u300c\u304a\u5c3b\u300d\u3060\u3068\u3059\u308b\u3068\uff0c\u300c\u304a\u5c3b $-$ \u982d\u300d\u306e\u5f62\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u3053\u306e\u300c\u304a\u5c3b $-$ \u982d\u300d\u306e\u5f62\u3092\u3057\u3063\u304b\u308a\u899a\u3048\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d9\u30af\u30c8\u30eb\u306e\u5b9f\u6570\u500d<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5b9f\u6570\u500d\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb $\\vec{a}$ \u3068\u5b9f\u6570 $k$ \u306b\u5bfe\u3057\u3066\uff0c$\\vec{a}$ \u306e $k$ \u500d\u3092 $k\\vec{a}$ \u3068\u8868\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$k>0$ \u306e\u3068\u304d\uff0c$k\\vec{a}$ \u306f\u5411\u304d\u306f $\\vec{a}$ \u3068\u540c\u3058\u3067\uff0c\u5927\u304d\u3055\u304c $k$ \u500d\u306b\u306a\u3063\u305f\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002$k&lt;0$ \u306e\u3068\u304d\u306f\u5411\u304d\u304c\u9006\u3067\uff0c\u5927\u304d\u3055\u304c $|k|$ \u500d\u306b\u306a\u3063\u305f\u30d9\u30af\u30c8\u30eb\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"352\" height=\"126\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66376.svg\" alt=\"\" class=\"wp-image-5380\"\/><noscript><img decoding=\"async\" width=\"352\" height=\"126\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66376.svg\" alt=\"\" class=\"wp-image-5380\"\/><\/noscript><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305f\uff0c\u4ee5\u4e0b\u306e\u6027\u8cea\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-st-blocks-my-box st-mybox has-title post-hashiro-point\" style=\"background-color:#fff;border-color:#ff7f50\"><p class=\"st-mybox-title\" style=\"color:#ff7f50;font-weight:bold;text-shadow:#fff 3px 0px 0px, #fff 2.83487px .981584px 0px, #fff 2.35766px 1.85511px 0px, #fff 1.62091px 2.52441px 0px, #fff .705713px 2.91581px 0px, #fff -0.287171px 2.98622px 0px, #fff -1.24844px 2.72789px 0px, #fff -2.07227px 2.16926px 0px, #fff -2.66798px 1.37182px 0px, #fff -2.96998px .42336px 0px, #fff -2.94502px -0.571704px 0px, #fff -2.59586px -1.50383px 0px, #fff -1.96093px -2.27041px 0px, #fff -1.11013px -2.78704px 0px, #fff -0.137119px -2.99686px 0px, #fff .850987px -2.87677px 0px, #fff 1.74541px -2.43999px 0px, #fff 2.44769px -1.73459px 0px, #fff 2.88051px -0.838246px 0px;background:linear-gradient(0deg, #fff 0%, #fff 55%, rgba(0, 0, 0, 0) 55%, rgba(0, 0, 0, 0) 100%)\"><i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"\"><\/i>\u30d9\u30af\u30c8\u30eb\u306e\u57fa\u672c\u6027\u8cea<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 wp-block-paragraph\">$k$\uff0c$l$ \u3092\u5b9f\u6570\u3068\u3059\u308b\u3068\u304d\uff0c<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1 wp-block-paragraph\">$$\\begin{aligned}&amp;k\\left(l\\vec{a}\\right)=(kl)\\vec{a}\\\\&amp;(k+l)\\vec{a}=k\\vec{a}+l\\vec{a}k\\left(\\vec{a}+\\vec{b}\\right)=k\\vec{a}+k\\vec{b}\\\\&amp;k\\left(l\\vec{a}\\right)=(kl)\\vec{a}\\\\&amp;(k+l)\\vec{a}=k\\vec{a}+l\\vec{a}\\\\&amp;k\\left(\\vec{a}+\\vec{b}\\right)=k\\vec{a}+k\\vec{b}\\end{aligned}$$<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon4 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p class=\"wp-block-paragraph\">\u30d9\u30af\u30c8\u30eb\u3092\u542b\u3080\u5f0f\u306e\u8a08\u7b97\u306f\uff0c\u6574\u5f0f\u306e\u8a08\u7b97\u3068\u540c\u3058\u3088\u3046\u306b\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff0c\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u306d\uff01<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u5b66\u7fd2\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\">\u5358\u4f4d\u30d9\u30af\u30c8\u30eb<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5358\u4f4d\u30d9\u30af\u30c8\u30eb\u3068\u306f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">$\\vec{a}$ \u3068\u540c\u3058\u5411\u304d\u3067\uff0c\u5927\u304d\u3055\u304c $1$ \u3068\u306a\u308b\u30d9\u30af\u30c8\u30eb\u3092<span class=\"st-mymarker-s\">\u5358\u4f4d\u30d9\u30af\u30c8\u30eb<\/span>\u3068\u3044\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\uff0c$\\left|\\vec{a}\\right|=2$\u3067\u3042\u308b $\\vec{a}$ \u3068\u5e73\u884c\u306a\u5358\u4f4d\u30d9\u30af\u30c8\u30eb $\\vec{e}$ \u306f\uff0c$\\vec{e}=\\bun{\\vec{a}}{2},\\,-\\Bun{\\vec{a}}{2}$ \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u822c\u306b\uff0c$\\vec{a}\\ne\\vec{0}$ \u306e\u3068\u304d\uff0c$\\vec{a}$ 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\u3060\u3051\u3067\u306f\u306a\u304f\uff0c$-\\Bun{\\vec{a}}{\\left|\\vec{a}\\right|}$ \u3082\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u30d9\u30af\u30c8\u30eb\u306e\u5b9a\u7fa9\u304b\u3089\uff0c\u52a0\u6cd5\u30fb\u6e1b\u6cd5\u3084\u9006\u30d9\u30af\u30c8\u30eb\u30fb\u96f6\u30d9\u30af\u30c8\u30eb\uff0c\u5b9f\u6570\u500d\u307e\u3067\u306e\u57fa\u672c\u6f14\u7b97\u3092\u3072\u3068\u3064\u305a\u3064\u6574\u7406\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":5326,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,32],"tags":[],"class_list":["post-5301","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-vector","category-32"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta 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