名校
解题方法
1 . 已知有公共焦点的椭圆与双曲线中心为原点,焦点在
轴上,左、右焦点分别为
,
,且它们在第一象限内的交点为
,
是以
为底边的等腰三角形且
,若双曲线的离心率取值范围为
,则椭圆的离心率的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02006cd01542a61c5911387c7447736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fcc887751a9f6bf2fe706a791b689ea.png)
您最近一年使用:0次
名校
2 . 已知椭圆
:
,直线
过焦点且倾斜角为
,以椭圆的长轴为直径的圆截
所得的弦长等于椭圆的焦距,则椭圆的离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-05-17更新
|
1350次组卷
|
5卷引用:江西省景德镇一中2020-2021学年高一(2班)下学期期中考试数学试题