已知双曲线
,过右焦点
作一条渐近线的垂线,垂足为
,点
在
上,且
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9080a3bcdbfafa0b7dda973934a567b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.2 | D.3 |
更新时间:2024-05-16 22:32:18
|
相似题推荐
单选题
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适中
(0.65)
【推荐1】设F为双曲线E:
的右焦点,过E的右顶点作x轴的垂线与E的渐近线相交于A,B两点,O为坐标原点,四边形OAFB为菱形,圆x2+y2=c2(c2=a2+b2)与E在第一象限的交点是P,且|PF|=
-1,则双曲线E的方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.x2-![]() |
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适中
(0.65)
名校
【推荐2】已知双曲线
的焦距为
,两条渐近线的夹角为
,则双曲线
的标准方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0d435f48d6406a78c6434693862ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
名校
【推荐1】直线
与双曲线
(a>0,b>0)的左支、右支分别交于A,B两点,F为右焦点,若AB⊥BF,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e054d4bf08411374801306d347d6f4a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dc9b1c1d859072331826a5885137b8.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次
单选题
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适中
(0.65)
解题方法
【推荐2】已知双曲线
的一条渐近线与直线
垂直,则双曲线的离心率等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78d38872e6210a3807679e530bf17880.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次