解题方法
1 . 设
分别是双曲线
的左,右焦点,若存在过点
的直线
与
的左支交于
两点,且
为等腰直角三角形,则双曲线的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdce3deea7dc84d1a2119a34863b36ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee45d6726ad642fed2dec3739a3aecb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
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解题方法
2 . 已知双曲线
的左、右焦点分别为
,
. 点A在双曲线
上,点
在
轴上,
,
,则双曲线
的渐近线方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c8091d78595c42d437ff5766431a8d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2511079c551c74e135cbdb08b9004d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de60e00140540e5e632e18f4d3f3e0db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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解题方法
3 . 已知
为双曲线
的左、右焦点,
为双曲线右支上任意一点,点
的坐标为
.若
有最大值,则双曲线
的离心率的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44a7c83c85510dd08b5c558642f6d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b80be643027f93fa710dcb9e54e44e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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4 . 已知点P是双曲线C:
(
,
)上一点,
,
分别是C的左、右焦点,设
,若
的重心和内心的连线垂直于x轴,则
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.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/faa4ae8d7537feb98c7de50302705609.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aefd06c239145a2b6ae87a955aa51414.png)
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名校
5 . 已知双曲线
的左、右焦点分别为
,
为左支上一点,
的内切圆圆心为
,直线
与
轴交于点
,若双曲线的离心率为
,则 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7f02a81db3da5c19fe5f5bcf5856ac.png)
___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a64cd73474d08729bb8381a566add5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede935419d69a161bb22fd513647da06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59ab85c075a09d55d69e159e4abb268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7f02a81db3da5c19fe5f5bcf5856ac.png)
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7日内更新
|
62次组卷
|
2卷引用:四川省成都石室中学2024届高三下学期高考适应性考试(一)理科数学试题
名校
解题方法
6 . 在平面直角坐标系
中,
,
分别是双曲线
:
的左,右焦点,设点
是
的右支上一点,则
的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dad0c75ce33673ec4c425896e8619e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c465763b60ec542adce65c94b0e31cf.png)
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2024-06-19更新
|
254次组卷
|
3卷引用:江苏省南通市如皋中学2024届高三下学期高考适应性考试(三)(3.5模)数学试题
名校
解题方法
7 . O为坐标原点,双曲线
的左焦点为
,点P在E上,直线
与直线
相交于点M,若
,则E的离心率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4769228ab5c2538da39d7490e11070c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5507e0871c69f8ccbe20581ec0cd1249.png)
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8 . 我国著名数学家华罗庚说“数缺形时少直观,形少数时难入微:数形结合百般好,隔离分家万事休”,包含的意思是:几何图形中都蕴藏着一定的数量关系,数量关系又常常可以通过几何图形做出直观的反映和描述,通过“数”与“形”的相互转化,常常可以巧妙地解决问题,所以“数形结合”是研究数学问题的重要思想方法之一.比如:
这个代数问题可以转化为点
与点
之间的距离的几何问题.结合上述观点可得,方程
的解为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/903bccc24f8d05f44da3df48be7e9163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f31c3f302f5b10a40723b5b372cfc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcd735ddc790c918d9a93336093fb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267d323a5bb381fe3fb9916f98e8d858.png)
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解题方法
9 . 如图所示,已知双曲线
的右焦点F,过点F作直线l交双曲线C于
两点,过点F作直线l的垂线交双曲线C于点G,
,且三点
共线(其中O为坐标原点),则双曲线C的离心率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c8091d78595c42d437ff5766431a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae6f48b9a53c0155a692509cf31f7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26bb3a0cefd6d2c7e136a699d01d1985.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f939338ef5c658eecd937afb43d378cd.png)
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名校
解题方法
10 . 已知O为坐标原点,F为双曲线C:
的左焦点,直线
与C交于A,B两点(点A在第一象限),若
,且
,则C的离心率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04fbca1869bfbaf3d55c6a01d3ebec1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01172fa3c06c87a328f1da5448ba11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0202f3b6aecd2710ed26514bfcb14fa.png)
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