{"id":915,"date":"2024-03-19T23:12:34","date_gmt":"2024-03-19T15:12:34","guid":{"rendered":"http:\/\/ceshi.cn\/?p=915"},"modified":"2024-03-19T23:12:34","modified_gmt":"2024-03-19T15:12:34","slug":"xititigao4-2","status":"publish","type":"post","link":"http:\/\/jhwk.online\/?p=915","title":{"rendered":"\u5706\u9525\u66f2\u7ebf\u7efc\u5408\u9898-\u63d0\u9ad8\u7bc7"},"content":{"rendered":"\n<div class=\"wp-block-stackable-spacer stk-block-spacer stk--no-padding stk-block stk-ede5a0c\" data-block-id=\"ede5a0c\"><\/div>\n\n\n\n<div class=\"wp-block-stackable-heading stk-block-heading stk-block-heading--v2 stk-block stk-538e11d\" id=\"\u9898\u76ee\" data-block-id=\"538e11d\"><h4 class=\"stk-block-heading__text\">\u9898\u76ee<\/h4><\/div>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>1.\u692d\u5706\ud835\udc36\u4e0e\u53cc\u66f2\u7ebf2\ud835\udc65^2-2\ud835\udc66^2=1\u6709\u76f8\u540c\u7684\u7126\u70b9\uff0c\u4e14\u8fc7(1,\\frac{3}{2}).~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(1)\u6c42\u692d\u5706\ud835\udc36\u7684\u65b9\u7a0b.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(2)\u5982\u56fe\u6240\u793a\uff0c\u8bb0\u692d\u5706\u7684\u5de6\u3001\u53f3\u9876\u70b9\u5206\u522b\u4e3a\ud835\udc34,\ud835\udc35,\u5f53\u52a8\u70b9\ud835\udc40\u5728\u76f4\u7ebf\ud835\udc65=4\u4e0a\u8fd0\u52a8\u65f6,\u76f4\u7ebf~~\\\\\ud835\udc34\ud835\udc40,\ud835\udc35\ud835\udc40\u5206\u522b\u4ea4\u692d\u5706\u4e8e\u70b9\ud835\udc43,\ud835\udc44.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n\ud835\udc4e.\u8bc1\u660e\uff1a\u70b9\ud835\udc35\u5728\u4ee5\ud835\udc43\ud835\udc44\u4e3a\u76f4\u5f84\u7684\u5706\u5185\uff1b~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n\ud835\udc4f.\u6c42\u56db\u8fb9\u5f62\ud835\udc34\ud835\udc43\ud835\udc35\ud835\udc44\u9762\u79ef\u7684\u6700\u5927\u503c.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-587bb37\" data-block-id=\"587bb37\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-dd408ef\" data-block-id=\"dd408ef\"><style>.stk-dd408ef .stk-button{background:var(--theme-palette-color-1,#EC6A2B) !important;border-top-left-radius:11px !important;border-top-right-radius:11px !important;border-bottom-right-radius:11px !important;border-bottom-left-radius:11px !important}.stk-dd408ef .stk-button:before{box-shadow:0 0 0 2px rgba(120,120,120,0.1) !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\/fabu\/%E5%9C%86%E9%94%A5%E6%9B%B2%E7%BA%BF%E7%BB%BC%E5%90%88%E9%A2%981%EF%BC%88%E6%8F%90%E9%AB%98%EF%BC%89\/HTML5\/practice.html\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u89c2\u770b\u5fae\u8bfe<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<hr 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\u2206\ud835\udc40\ud835\udc39_1\ud835\udc39_2\u7684\u5468\u957f\u4e3a4+2\\sqrt{3}\uff0c\u9762\u79ef\u4e3a\\frac{1}{2}\ud835\udc50.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(1)\u6c42\u692d\u5706\ud835\udc38\u7684\u65b9\u7a0b.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(2)\u8bbe\u692d\u5706\ud835\udc38\u7684\u5de6\u3001\u53f3\u9876\u70b9\u5206\u522b\u4e3a\ud835\udc34,\ud835\udc35,\u8fc7\u70b9(1,0)\u7684\u76f4\u7ebf\ud835\udc59\u4e0e\u692d\u5706\ud835\udc38\u4ea4\u4e8e\ud835\udc36,\ud835\udc37\u4e24\u70b9\uff08\u4e0d\u540c\u4e8e\\\\\u5de6\u53f3\u9876\u70b9\uff09\uff0c\u8bb0\u76f4\u7ebf\ud835\udc34\ud835\udc36\u7684\u659c\u7387\u4e3a\ud835\udc58_1,\u76f4\u7ebf\ud835\udc35\ud835\udc37\u7684\u659c\u7387\u4e3a\ud835\udc58_2\uff0c\u95ee\u662f\u5426\u5b58\u5728\u5b9e\u5e38\u6570\u03bb,\u4f7f\u5f97\\\\\ud835\udc58_1=\u03bbk_2\u6052\u6210\u7acb\uff1f\u82e5\u6210\u7acb\uff0c\u6c42\u51fa\u03bb\u7684\u503c\uff0c\u82e5\u4e0d\u6210\u7acb\uff0c\u8bf4\u660e\u7406\u7531\uff0e\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad<\/pre><\/div>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-7785834\" data-block-id=\"7785834\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-73990da\" data-block-id=\"73990da\"><style>.stk-73990da .stk-button{background:var(--theme-palette-color-1,#EC6A2B) !important;border-top-left-radius:11px !important;border-top-right-radius:11px !important;border-bottom-right-radius:11px !important;border-bottom-left-radius:11px !important}.stk-73990da .stk-button:before{box-shadow:0 0 0 2px rgba(120,120,120,0.1) !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" href=\"\/fabu\/%E5%9C%86%E9%94%A5%E6%9B%B2%E7%BA%BF%E7%BB%BC%E5%90%88%E9%A2%982%EF%BC%88%E6%8F%90%E9%AB%98%EF%BC%89\/HTML5\/practice.html\" target=\"_blank\" rel=\"noreferrer noopener\"><span class=\"stk-button__inner-text\">\u89c2\u770b\u5fae\u8bfe<\/span><\/a><\/div>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>3.\u5df2\u77e5\u692d\u5706W:\\frac{x^2}{4m}+\\frac{y^2}{m}=1(m&gt;0)\u7684\u957f\u8f74\u957f\u4e3a4\uff0c\u5de6\u3001\u53f3\u9876\u5206\u522b\u4e3aA,B\u7ecf\u8fc7\u70b9~~~~~~~~~~\\\\P(1,0)\u7684\u52a8\u76f4\u7ebf\u4e0e\u692d\u5706W\u4ea4\u4e8e\u4e0d\u540c\u7684\u4e24\u70b9C,D(\u4e0d\u4e0e\u70b9A,B\u91cd\u5408)\u3002~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(1)\u6c42\u692d\u5706W\u7684\u65b9\u7a0b\u53ca\u79bb\u5fc3\u7387\uff1b~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\\\\\n(2)\u82e5\u76f4\u7ebfCB\u4e0e\u76f4\u7ebfAD\u76f8\u4ea4\u4e8eM,\u5224\u65ad\u70b9M\u662f\u5426\u4f4d\u4e8e\u4e00\u6761\u5b9a\u76f4\u7ebf\u4e0a\uff1f\u82e5\u662f\uff0c\u6c42\u51fa\u8be5~~~~\\\\\u76f4\u7ebf\u7684\u65b9\u7a0b\uff0c\u82e5\u4e0d\u662f\u8bf4\u660e\u7406\u7531\u3002~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~<\/pre><\/div>\n\n\n\n<div class=\"wp-block-stackable-button-group 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has-alpha-channel-opacity is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-katex-display-block katex-eq\" data-katex-display=\"true\"><pre>4.\u5df2\u77e5\u692d\u5706C:\\frac{x^2}{a^2}+\\frac{y^2}{b^2}=1(a&gt;b&gt;0)\u7684\u53f3\u7126\u70b9F\u4e0e\u629b\u7269\u7ebfE:y^2=2px(p&gt;0)\u7684\u7126~~~~\\\\\u70b9\u76f8\u540c\uff0c\u66f2\u7ebfC\u7684\u79bb\u5fc3\u7387\u4e3a\\frac{1}{2},M(2,y)\u4e3aE\u4e0a\u7684\u4e00\u70b9\u4e14|MF|=3.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \\\\\n(1)\u6c42\u66f2\u7ebfC\u548c\u66f2\u7ebfE\u7684\u65b9\u7a0b\u3002~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~  \\\\\n(2)\u82e5\u76f4\u7ebfl:y=kx+2\u4ea4\u66f2\u7ebfC\u4e0eP,Q\u4e24\u70b9\uff0cl\u4ea4y\u8f74\u4e8eR.~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ \\\\\na.\u6c42\u4e09\u89d2\u5f62POQ\u9762\u79ef\u7684\u6700\u5927\u503c(O\u4e3a\u5750\u6807\u539f\u70b9)\u3002\\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\quad   \\\\\nb.\\vec{BP}=\u03bb\\vec{RQ},\u6c42\u5b9e\u6570\u03bb\u7684\u53d6\u503c\u8303\u56f4\u3002\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad\\quad<\/pre><\/div>\n\n\n\n<div class=\"wp-block-stackable-button-group stk-block-button-group stk-block stk-38fe971\" data-block-id=\"38fe971\"><div class=\"stk-row stk-inner-blocks stk-block-content stk-button-group\">\n<div class=\"wp-block-stackable-button stk-block-button stk-block stk-cd579de\" data-block-id=\"cd579de\"><style>.stk-cd579de .stk-button{border-top-left-radius:11px !important;border-top-right-radius:11px !important;border-bottom-right-radius:11px !important;border-bottom-left-radius:11px !important}.stk-cd579de .stk-button:before{box-shadow:0 0 0 2px rgba(120,120,120,0.1) !important}<\/style><a class=\"stk-link stk-button stk--hover-effect-darken\" 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