不与
轴重合的直线
过点
,双曲线
上存在两点
关于
对称,
中点
的横坐标为
.若
,则双曲线
的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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22-23高二下·湖南衡阳·阶段练习 查看更多[3]
湖南省衡阳市第八中学2022-2023学年高二下学期3月第二次月考数学试题(已下线)3.2.2 双曲线的简单几何性质(精练)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)四川省成都市石室中学2023-2024学年高二上学期期末综合复习数学试题(一)
更新时间:2023-03-20 14:23:28
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【推荐1】设双曲线
的右焦点为
,右顶点为
,过
作
的垂线与双曲线交于
两点,过
分别作
的垂线交于
,若
到直线
的距离不大于
,则该双曲线的离心率的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5881068127a39caf319492b4177204f0.png)
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【推荐2】过双曲线
的右焦点
作
的一条渐近线的垂线,垂足为
交另一条渐近线于点
,若
,
,求
的离心率的取值范围为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c000668417b02b8c9ce72b9c490a77.png)
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【推荐1】设
分别为双曲线
的左、右焦点,点
是双曲线左支上一点,
是
的中点,且
,
,则双曲线的离心率为_________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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【推荐2】双曲线C:
(
,
)的两个焦点为
,
,以C的虚轴为直径的圆记为D,过
作D的切线与C的渐近线
交于点H,若
的面积为
,则C的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92febb64725497dd891a525e6f998e35.png)
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【推荐1】已知过坐标原点的直线
与双曲线
相交于A,B两点,点
在第一象限,经过点
且与直线
垂直的直线与双曲线
的另外一个交点为
,点
在
轴上,
,点
为坐标原点,且
,则双曲线
的离心率_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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