解题方法
1 . 已知F1,F2分别是椭圆
的左、右焦点,M是椭圆上的动点,点A(1,1),则
的最大值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c609b1e1c509bff8602214be87e6a74c.png)
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解题方法
2 . 抛物线
的焦点为
,准线为
,点
是准线
上的动点,若点
在抛物线
上,且
,则
(
为坐标原点)的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c1ba86ffc6e5542b62319848c14acaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d1ba10adcb84eafe3a6677c76064e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497305c01377ab7a342e29247b80ac17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
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3 . 点P为双曲线(
,
为焦点)上一点,点P处的切线平分
.已知双曲线C:
,O为坐标原点,l是点
处的切线,过左焦点
作l的垂线,垂足为M,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1653c086d557b1845d82c2d4d8231f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2cd591b3483ba59a4ae7318d9d5559f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeac5175101c8d3fbdefea179f41c992.png)
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4 . 已知圆E:
,点
,P是圆E上的任意一点,线段PF的垂直平分线和半径PE相交于点Q,则动点Q的轨迹方程为____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afc954e87bd737ec051d5c94837c8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
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5 . 已知椭圆
的上下焦点分别为
、
,点
为椭圆上的任意一点,则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5331c7d51a4892cf1671f5bb5f3d7713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34005d3b709a89e3db6bb786bbfb2369.png)
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6 . 已知
为双曲线
的右焦点,
为双曲线
的两条渐近线,以
为圆心的圆与渐近线相切于
两点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1d8736a2f5a41c1942f8684ab3a81d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dec7f6309562276a49560c17c98dedf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
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7 . 已知直线
(其中
)与圆
交于M、N,O是坐标原点,则
为______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6b6e44dd054b54f89e7c237eb1428da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56fbe9991b8a89a003b3b7d70297574b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
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8 . 著名数学家华罗庚曾说过:“数缺形时少直观,形缺数时难入微.数形结合百般好,隔裂分家万事休”事实上,有很多代数问题可以转化为几何问题加以解决.请你运用数形结合的思想,得出函数
的最大值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5dfaa65d3daa4a1f3b3825b7dbd851.png)
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9 . 过抛物线
上一点P,向圆
作切线,切点分别为A,B,则当
最大时,P点坐标为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddce4fd2ae03659cf8cdd15ae158654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb686e4f5e3938575bc547e849d5513f.png)
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2023-12-24更新
|
99次组卷
|
2卷引用:安徽省宣城市宣城中学2023-2024学年高二上学期第二次月考数学试题
解题方法
10 . 已知椭圆
的左、右焦点分别是
,
,
为
上一点,且
,
是线段
的中点,
为坐标原点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6a9a48f038f66fcdfee5a4cff3a03f.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb68bac0f001ae947aee545c2124557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5357841daf522e6adcb7e0f9fccedef5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6a9a48f038f66fcdfee5a4cff3a03f.png)
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