已知双曲线的方程
,则该双曲线的离心率为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1892b7c3cd7bea116f532f66fba44662.png)
A.![]() | B.![]() | C.![]() | D.![]() |
2022·广东佛山·模拟预测 查看更多[2]
更新时间:2022-05-25 15:21:58
|
【知识点】 求双曲线的离心率或离心率的取值范围
相似题推荐
单选题
|
较易
(0.85)
解题方法
【推荐1】在正三角形
中,点
是在
上,且
.若
、
是椭圆
和双曲线
的公共焦点,
是
与
的一个公共交点,则
与
的离心率之积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2d7ec3ab513b8ce3ca2d7bf7b3ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐2】已知点A1,A2分别为双曲线C:
的左、右顶点,直线y=kx交双曲线于M,N两点,若
•
•
•
4,则双曲线C的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a03551e50e875f6033e7168fc6c51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d47c00fe35817861b97ea6294d18da1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/206bcd7ef158fba64acd88a8ae7aeca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7cb86401a339d6151332d6f36ae7c55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26b9d8727fcc3ad148d2587ad27c021f.png)
A.![]() | B.2 | C.![]() | D.![]() |
您最近一年使用:0次