{"id":4833,"date":"2025-11-23T15:36:14","date_gmt":"2025-11-23T07:36:14","guid":{"rendered":"http:\/\/jhwk.online\/?p=4833"},"modified":"2025-11-23T15:44:07","modified_gmt":"2025-11-23T07:44:07","slug":"%e4%b8%89%e8%a7%92%e5%87%bd%e6%95%b0%e9%a2%984-2-2-2","status":"publish","type":"post","link":"http:\/\/jhwk.online\/?p=4833","title":{"rendered":"\u4e09\u89d2\u51fd\u6570\u98986"},"content":{"rendered":"\n<div class=\"wp-block-stackable-subtitle stk-block-subtitle stk-block stk-8afe3d6\" data-block-id=\"8afe3d6\"><style>.stk-8afe3d6 .stk-block-subtitle__text{color:#0693e3 !important;}<\/style><p class=\"stk-block-subtitle__text stk-subtitle has-text-color\">\u672c\u9898\u75312023\u7ea725\u73ed\u9a6c\u60a0\u7136\u8bb2\u89e3\uff01<\/p><\/div>\n\n\n\n<figure class=\"wp-block-video\"><video height=\"1102\" style=\"aspect-ratio: 1958 \/ 1102;\" width=\"1958\" controls src=\"http:\/\/jhwk.online\/wp-content\/uploads\/2025\/11\/\u4e09\u89d2\u51fd\u65706.mp4\"><\/video><\/figure>\n\n\n\n<p>[ratemypost]<\/p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background is-style-wide\"\/>\n\n\n\n<h5 class=\"wp-block-heading has-vivid-cyan-blue-color has-text-color has-link-color wp-elements-8a052dbd5caa870510f1e594e9e095cf\">\u9898\u76ee\u5c55\u793a\u2014\u2014\u5148\u63a2\u7a76\u3001\u518d\u542c\u8bb2<\/h5>\n\n\n\n\u5728 \\(\\triangle ABC\\) \u4e2d\uff0c\u5185\u89d2 \\(A, B, C\\) \u7684\u5bf9\u8fb9\u5206\u522b\u4e3a \\(a, b, c\\)\uff0c\u4e14 \\(c = 2b\\)\uff0c\\(2\\sin A = 3\\sin 2C\\)\u3002  <p>\n(1) \u6c42 \\(\\displaystyle \\frac{a}{b}\\) \u7684\u503c\uff1b  <p>\n(2) \u82e5 \\(\\triangle ABC\\) \u7684\u9762\u79ef\u4e3a \\(\\displaystyle \\frac{3\\sqrt{7}}{2}\\)\uff0c\u6c42 \\(AB\\) \u8fb9\u4e0a\u7684\u9ad8\u3002<p>\n\n\n\n<hr class=\"wp-block-separator has-text-color has-vivid-cyan-blue-color has-alpha-channel-opacity has-vivid-cyan-blue-background-color has-background is-style-wide\"\/>\n\n\n\n<h4 class=\"wp-block-heading has-text-align-center has-text-color has-background has-link-color has-medium-font-size wp-elements-8366a06008302950c0f8fd2d6d694915\" style=\"color:#1e4b69;background:linear-gradient(0deg,rgb(230,242,255) 0%,rgb(230,242,255) 16%,rgb(92,175,230) 100%)\">\u89e3\u9898\u63a2\u7a76\u2014\u2014\u70b9\u51fb\u76f4\u8fbe<\/h4>\n\n\n\n<style>\n  .video-jump-btn {\n    cursor: pointer;\n    text-align: left;\n    background-color: #e6f2ff; \/* \u6de1\u84dd\u8272\u80cc\u666f *\/\n    border: none;\n    padding: 8px 12px;\n    border-radius: 4px;\n    transition: all 0.3s ease; \/* \u5e73\u6ed1\u8fc7\u6e21\u52a8\u753b *\/\n    font-size: 16px;\n  }\n  \n  .video-jump-btn:hover {\n    background-color: #cce0ff; \/* \u7565\u6df1\u7684\u84dd\u8272\u80cc\u666f *\/\n    transform: scale(1.02); \/* \u8f7b\u5fae\u653e\u5927\u6548\u679c *\/\n    box-shadow: 0 2px 4px rgba(0,0,0,0.1); \/* \u589e\u52a0\u8f7b\u5fae\u9634\u5f71 *\/\n  }\n<\/style>\n\n<button class=\"video-jump-btn\" onclick=\"document.querySelector('video').currentTime = 0; document.querySelector('video').play();\">\n\u95ee\u9898(1) $\\displaystyle\\frac{a}{b}=\\displaystyle\\frac{3\\sqrt{2}}{2}$\uff1b\n\n<\/button>\n\n\n\n<br>\n<style>\n  .video-jump-btn {\n    cursor: pointer;\n    text-align: left; \/* \u5de6\u5bf9\u9f50\u6587\u672c *\/\n   \n  }\n<\/style>\n\n<button class=\"video-jump-btn\" onclick=\"document.querySelector('video').currentTime =106; document.querySelector('video').play();\">\n\n\u95ee\u9898(2) \u6c42\u51fa$b=2,c=4$\uff0c\u5229\u7528\u7b49\u9762\u79ef\u6cd5\u6c42\u5f97$h=\\displaystyle\\frac{3\\sqrt{7}}{4}$\uff1b\n\n<\/button>\n\n\n\n \n","protected":false},"excerpt":{"rendered":"<p>\u672c\u9898\u75312023\u7ea725\u73ed\u9a6c\u60a0\u7136\u8bb2\u89e3\uff01 [ratemypost] \u9898\u76ee\u5c55\u793a\u2014\u2014\u5148\u63a2\u7a76\u3001\u518d\u542c\u8bb2 \u5728 \\(\\trian [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4833","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"blocksy_meta":[],"_links":{"self":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts\/4833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4833"}],"version-history":[{"count":4,"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts\/4833\/revisions"}],"predecessor-version":[{"id":4841,"href":"http:\/\/jhwk.online\/index.php?rest_route=\/wp\/v2\/posts\/4833\/revisions\/4841"}],"wp:attachment":[{"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4833"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4833"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/jhwk.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}