名校
1 . 已知点
是双曲线
:
右支上一点,
是双曲线的左焦点,且双曲线的一条渐近线恰是线段
的中垂线,则该双曲线的离心率是( )
![](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/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
A.![]() | B.![]() | C.2 | D.![]() |
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2 . 已知点
,
分别是双曲线
的左、右焦点,过
且垂直于x轴的直线与双曲线交于A,B两点,若
是锐角三角形,则双曲线离心率的范围是( )
![](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/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635a0150fe965ced8935d7479b22c508.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-11-20更新
|
1093次组卷
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5卷引用:陕西省汉中市十校2022届高三下学期第二次联考文科数学试题
陕西省汉中市十校2022届高三下学期第二次联考文科数学试题黑龙江省鹤岗市第一中学2019-2020学年高二上学期期中数学(理)试题浙江省嘉兴八校联盟2021-2022学年高二上学期期中联考数学试题山东省潍坊市昌乐二中2023-2024学年高二上学期期末拉练数学试题(二)(已下线)专题19 双曲线离心率定值及取值范围(期末选择题19)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)
名校
3 . 设双曲线
(
)的左、右焦点分别为
,过
的直线分别交双曲线左右两支于点
,连结
,若
,
,则双曲线
的离心率为.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5e95210278351fe5ca0561977d3ab85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca82d6c856347f726036b8c5f8e46f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ba80be450e578bef55b932232e884.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19adbaa276fb78dc6cb805307d64abee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d72ebec1edf100c0f98cf085f58dae0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7f1113f1967ea9591be7aca00cc14c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-01-31更新
|
2436次组卷
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7卷引用:2020届陕西省西安中学高三第二次模拟数学(理)试题