{"id":5158,"date":"2024-12-27T13:29:20","date_gmt":"2024-12-27T04:29:20","guid":{"rendered":"https:\/\/torisetudy.com\/?p=5158"},"modified":"2026-03-09T17:45:59","modified_gmt":"2026-03-09T08:45:59","slug":"%e4%b8%89%e8%a7%92%e9%96%a2%e6%95%b0","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=5158","title":{"rendered":"\u4e09\u89d2\u95a2\u6570"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa9<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u4e09\u89d2\u95a2\u6570\u306e\u76f8\u4e92\u95a2\u4fc2<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u4e09\u89d2\u95a2\u6570\u306e\u6027\u8cea<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa9<\/span><\/h2>\n\n\n\n<p>\u5358\u4f4d\u5186\u3092\u7528\u3044\u3066<\/p>\n\n\n\n<p>$x$ \u8ef8\u306e\u6b63\u306e\u90e8\u5206\u3092\u59cb\u7dda\u3068\u3057\uff0c\u534a\u5f84 $1$ \u306e\u5186\uff08\u5358\u4f4d\u5186\uff09\u3092\u8003\u3048\u307e\u3059\u3002\u5186\u5468\u4e0a\u306b\u70b9 $\\rmP$ \u3092\u3068\u308a\uff0c\u89d2 $\\theta$ \u306e\u52d5\u5f84 $\\rmO\\rmP$ \u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"187\" height=\"128\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66143.svg\" alt=\"\" class=\"wp-image-5212\"\/><noscript><img decoding=\"async\" width=\"187\" height=\"128\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66143.svg\" alt=\"\" class=\"wp-image-5212\"\/><\/noscript><\/figure>\n\n\n\n<p>\u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa9\u306f\uff0c\u5358\u4f4d\u5186\u5468\u4e0a\u306b $x$\u8ef8\u3068\u306a\u3059\u89d2\u304c $\\theta$ \u3068\u306a\u308b\u3088\u3046\u52d5\u5f84 $\\rmO\\rmP$ \u3092\u3068\u3063\u305f\u3068\u304d\uff0c\u6b21\u306e\u3088\u3046\u306b\u306a\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>\u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa9<\/p><div class=\"st-in-mybox\">\n<p>\u5358\u4f4d\u5186\u306b\u304a\u3044\u3066\uff0c<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">$$\\begin{aligned} &amp;\\sin\\theta=\\stext{$\\rmP$ \u306e $y$ \u5ea7\u6a19}\\\\ &amp;\\cos\\theta=\\stext{$\\rmP$ \u306e $x$ \u5ea7\u6a19}\\\\ &amp;\\tan\\theta=\\stext{$\\rmO\\rmP$ \u306e\u50be\u304d} \\end{aligned}$$<\/p>\n<\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u95a2\u6570\u3068\u3057\u3066\u8003\u3048\u308b<\/h3>\n\n\n\n<p>$\\rmP$ \u306e\u4f4d\u7f6e\u306b\u3088\u3063\u3066 $\\theta$ \u306f\u5909\u5316\u3057\u307e\u3059\u304b\u3089\uff0c$\\theta$ \u306e\u5024\u306b\u3088\u3063\u3066 $\\sin\\theta$\uff0c$\\cos\\theta$\uff0c$\\tan\\theta$ \u306e\u5024\u3082\u5909\u5316\u3057\u307e\u3059\u3002\u3064\u307e\u308a\uff0c$\\sin\\theta$\uff0c$\\cos\\theta$\uff0c$\\tan\\theta$ \u306f $\\theta$ \u306e\u95a2\u6570\u306b\u306a\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u3088\u3046\u306b\u8003\u3048\u305f\u3082\u306e\u3092<span class=\"st-mymarker-s\">\u4e09\u89d2\u95a2\u6570<\/span>\u3068\u3044\u3044\uff0c\u4e09\u89d2\u6bd4\u3068\u540c\u3058\u3088\u3046\u306a\u610f\u5473\u5408\u3044\u3067\u7528\u3044\u3089\u308c\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>\u95a2\u6570\u3068\u3057\u3066\u8003\u3048\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u306d\uff01\u3068\u3044\u3046\u3060\u3051\u3067\uff0c\u8003\u3048\u65b9\u306f\u3053\u308c\u307e\u3067\u306e\u4e09\u89d2\u6bd4\u3068\u540c\u3058\u3067\u3059\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u4e09\u89d2\u95a2\u6570\u306e\u76f8\u4e92\u95a2\u4fc2<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u5404\u7a2e\u516c\u5f0f<\/h3>\n\n\n\n<p>\u4e09\u89d2\u6bd4\u3068\u540c\u69d8\u306b\uff0c\u6b21\u306e\u516c\u5f0f\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>\u4e09\u89d2\u95a2\u6570\u306e\u57fa\u672c\u516c\u5f0f<\/p><div class=\"st-in-mybox\">\n<p>\u4ee5\u4e0b\u306e\u95a2\u4fc2\u5f0f\u304c\u6210\u308a\u7acb\u3064\u3002<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">$$\\begin{aligned}&amp;\\stext{\u2460\\ $\\sin^2\\theta+\\cos^2\\theta=1$}\\\\&amp;\\stext{\u2461\\ $\\tan\\theta=\\bun{\\sin\\theta}{\\cos\\theta}$}\\\\&amp;\\stext{\u2462\\ $\\tan^2\\theta+1=\\bun{1}{\\cos^2\\theta}$}\\end{aligned}$$<\/p>\n<\/div><\/div>\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>\u7279\u306b \u2460 \u3068 \u2461 \u306f\u901f\u3084\u304b\u306b\u4f7f\u3044\u3053\u306a\u305b\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-3\">\u4e09\u89d2\u95a2\u6570\u306e\u6027\u8cea<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u4e09\u89d2\u95a2\u6570\u306e\u8868\u73fe\u65b9\u6cd5<\/h3>\n\n\n\n<p>\u4e09\u89d2\u95a2\u6570\u3092\u52b9\u7387\u7684\u306b\u6271\u3046\u305f\u3081\uff0c\u4e09\u89d2\u95a2\u6570\u306e\u6027\u8cea\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u305f\u3068\u3048\u3070\uff0c\u6b21\u306e\u3088\u3046\u306a\u95a2\u4fc2\u3092\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<p>$$\\cos(\\pi-\\theta)=-\\cos\\theta\\stext{\\quad\u2026\\ \u2460}$$<\/p>\n\n\n\n<p>\u3053\u306e\u5f0f\u306e\u5de6\u8fba\u306f $\\cos(\\pi-\\theta)$ \u3068\u306a\u3063\u3066\u3044\u307e\u3059\u304c\uff0c\u5b9f\u306f\u3053\u306e\u5f0f\u306f $-\\cos\\theta$ \u3068\u5909\u5f62\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3069\u3061\u3089\u306e\u65b9\u304c\u7c21\u5358\u3067\u3059\u304b\uff1f<\/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>\u5f8c\u8005\u306e\u307b\u3046\u304c\u308f\u304b\u308a\u3084\u3059\u3044\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=\"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>\u3055\u3066\uff0c\u306a\u305c\u3053\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">\u5358\u4f4d\u5186\u3067\u8003\u3048\u308b<\/h3>\n\n\n\n<p>\u5358\u4f4d\u5186\u5468\u4e0a\u306b\u9069\u5f53\u306b\u89d2 $\\theta$ \u306e\u52d5\u5f84\u3092\u3068\u3063\u3066\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=\"189\" height=\"126\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66365.svg\" alt=\"\" class=\"wp-image-5192\"\/><noscript><img decoding=\"async\" width=\"189\" height=\"126\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u6570\u5b66365.svg\" alt=\"\" class=\"wp-image-5192\"\/><\/noscript><\/figure>\n\n\n\n<p>\u52d5\u5f84 $\\rmO\\rmP$ \u3092\u56f3\u306e\u3088\u3046\u306b\u3068\u308b\u3068\u304d\uff0c\u89d2 $(\\pi-\\theta)$ \u306e\u52d5\u5f84 $\\rmO\\rmQ$ \u3082\u56f3\u306e\u3088\u3046\u306b\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u3055\u3066\uff0c<\/p>\n\n\n\n<p>$$\\cos(\\pi-\\theta)=\\stext{\uff08\u70b9 $\\rmQ$\u306e $x$ \u5ea7\u6a19\uff09}$$\u3067\u3042\u308b\u308f\u3051\u3067\u3059\u304c\uff0c\u70b9 $\\rmQ$ \u306f $y$ \u8ef8\u3092\u5bfe\u79f0\u306e\u8ef8\u3068\u3057\u3066\u70b9 $\\rmP$ \u3068\u5bfe\u79f0\u306a\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u3053\u3068\u306f\uff0c<\/p>\n\n\n\n<p>$$\\cos(\\pi-\\theta)=\\stext{\uff08\u70b9 $\\rmQ$\u306e $x$ \u5ea7\u6a19\uff09}=-\\stext{\uff08\u70b9 $\\rmP$\u306e $x$ \u5ea7\u6a19\uff09}$$\u3067\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>\u5358\u4f4d\u5186\u304c\u306a\u3044\u3068\u3053\u306e\u3042\u305f\u308a\u306f\u8003\u3048\u3065\u3089\u3044\u3067\u3059\u306d\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<p>\u3053\u3053\u3067\uff0c<\/p>\n\n\n\n<p>$$\\stext{\uff08\u70b9 $\\rmP$\u306e $x$ \u5ea7\u6a19\uff09}=\\cos\\theta$$\u306a\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$\\begin{aligned}\\cos(\\pi-\\theta)&amp;=\\stext{\uff08\u70b9 $\\rmQ$\u306e $x$ \u5ea7\u6a19\uff09}\\\\&amp;=-\\stext{\uff08\u70b9 $\\rmP$\u306e $x$ \u5ea7\u6a19\uff09}\\\\&amp;=-\\cos\\theta\\end{aligned}$$\u3068\u306a\u308a\uff0c\u2460 \u306e\u5f0f\u306e\u6210\u7acb\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u305d\u306e\u4ed6\u306e\u95a2\u4fc2\u5f0f<\/h3>\n\n\n\n<p>\u4ee5\u4e0b\u306b\uff0c\u4ee3\u8868\u7684\u306a\u6027\u8cea\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u5404\u95a2\u4fc2\u5f0f\u306f\u4e38\u6697\u8a18\u3059\u308b\u306e\u3067\u306f\u306a\u304f\uff0c\u4e0a\u306e\u3088\u3046\u306b\u5358\u4f4d\u5186\u3092\u7528\u3044\u305f\u8003\u3048\u65b9\u3092\u7406\u89e3\u3057\uff0c\u3059\u3050\u306b\u5c0e\u3051\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304a\u304d\u307e\u3057\u3087\u3046\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>\u899a\u3048\u306a\u3044\u3067\u304f\u3060\u3055\u3044\uff01\uff01\u305d\u306e\u5834\u3067\u5358\u4f4d\u5186\u3092\u304b\u3044\u3066\uff0c10\u79d2\u304f\u3089\u3044\u3067\u5c0e\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\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>\u3044\u308d\u3044\u308d\u306a\u95a2\u4fc2\u5f0f<\/p><div class=\"st-in-mybox\">\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2460 $\\theta+2n\\pi$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin(\\theta+2n\\pi)&amp;=\\sin\\theta\\\\ \\cos(\\theta+2n\\pi)&amp;=\\cos\\theta\\\\ \\tan(\\theta+2n\\pi)&amp;=\\tan\\theta\\end{aligned}$$<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2461 $-\\theta$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin(-\\theta)&amp;=-\\sin\\theta\\\\ \\cos(-\\theta)&amp;=\\cos\\theta\\\\ \\tan(-\\theta)&amp;=-\\tan\\theta\\end{aligned}$$<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2462 $\\theta+\\pi$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin(\\theta+\\pi)&amp;=-\\sin\\theta\\\\ \\cos(\\theta+\\pi)&amp;=-\\cos\\theta\\\\ \\tan(\\theta+\\pi)&amp;=\\tan\\theta\\end{aligned}$$<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2463 $\\pi-\\theta$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin(\\pi-\\theta)&amp;=\\sin\\theta\\\\ \\cos(\\pi-\\theta)&amp;=-\\cos\\theta\\\\ \\tan(\\pi-\\theta)&amp;=-\\tan\\theta\\end{aligned}$$<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2464 $\\theta+\\bun{\\pi}{2}$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin\\left(\\theta+\\bun{\\pi}{2}\\right)&amp;=\\cos\\theta\\\\ \\cos\\left(\\theta+\\bun{\\pi}{2}\\right)&amp;=-\\sin\\theta\\\\ \\tan\\left(\\theta+\\bun{\\pi}{2}\\right)&amp;=-\\bun{1}{\\tan\\theta}\\end{aligned}$$<\/p>\n\n\n\n<p class=\"has-st-margin-bottom has-st-margin-bottom--1\">\u2465 $\\bun{\\pi}{2}-\\theta$ \u306b\u3064\u3044\u3066<\/p>\n\n\n\n<p>$$\\begin{aligned}\\sin\\left(\\bun{\\pi}{2}-\\theta\\right)&amp;=\\cos\\theta\\\\ \\cos\\left(\\bun{\\pi}{2}-\\theta\\right)&amp;=\\sin\\theta\\\\ \\tan\\left(\\bun{\\pi}{2}-\\theta\\right)&amp;=\\bun{1}{\\tan\\theta}\\end{aligned}$$<\/p>\n<\/div><\/div>\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>\u7e70\u308a\u8fd4\u3057\u306b\u306a\u308a\u307e\u3059\u304c\uff0c\u899a\u3048\u306a\u3044\u3067\uff01\uff01\u5358\u4f4d\u5186\u3092\u304b\u3044\u3066\u3059\u3050\u306b\u5c0e\u3051\u308b\u3088\u3046\u306b\u7df4\u7fd2\u3057\u3066\u304f\u3060\u3055\u3044\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b211 \u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa92 \u4e09\u89d2\u95a2\u6570\u306e\u76f8\u4e92\u95a2\u4fc23 \u4e09\u89d2\u95a2\u6570\u306e\u6027\u8cea \u4e09\u89d2\u95a2\u6570\u306e\u5b9a\u7fa9 \u5358\u4f4d\u5186\u3092\u7528\u3044\u3066 $x$ \u8ef8\u306e\u6b63\u306e\u90e8\u5206\u3092\u59cb\u7dda\u3068\u3057\uff0c\u534a\u5f84 $1$ \u306e\u5186\uff08\u5358\u4f4d\u5186\uff09\u3092\u8003\u3048\u307e\u3059\u3002\u5186\u5468\u4e0a\u306b\u70b9 $\\rmP$ \u3092\u3068\u308a &#8230; <\/p>\n","protected":false},"author":1,"featured_media":5147,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33,32],"tags":[],"class_list":["post-5158","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-trigonometry","category-32"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/5158"}],"collection":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5158"}],"version-history":[{"count":30,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/5158\/revisions"}],"predecessor-version":[{"id":5241,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/5158\/revisions\/5241"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/media\/5147"}],"wp:attachment":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5158"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5158"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5158"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}