若抛物线
的焦点到双曲线
渐近线的距离是
,则该双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fdedd1db38755989cd462c151f5106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
A.2 | B.![]() | C.![]() | D.![]() |
更新时间:2020-09-12 21:37:21
|
相似题推荐
单选题
|
适中
(0.65)
真题
【推荐1】已知椭圆
(
)与双曲线
有公共的焦点,
的一条渐近线与以原点为圆心,以
的长轴为直径的圆相交于
两点.若
恰好将线段
三等分,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cd361ce118bca96a731b241a9c587d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b77c4a8dc7289c05ed0e5a96ff107ef.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知双曲线C:
y2=1,O为坐标原点,F为C的右焦点,过F的直线与C的两条渐近线的交点分别为M,N.若△OMN为直角三角形,则|MN|=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad984dda3ebcc298d20934e95b0facc.png)
A.![]() | B.2 | C.3 | D.6或3 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】曲线
的左、右焦点分别为
,
,以
为圆心,
为半径作
,若点
关于直线
的对称点M落在
上,则该双曲线的离心率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7fff25e3ad6a0c013218c6a7625deb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a055d94c4c69a7f867c0e2b69bd8041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97aaf330a7f3b97354c6b40fa4528cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e35bca997992e5151165277a575e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1996f60e2c55e0caa2b095ac23ab2b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b806db07c7b295d4f706928be57d9dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e35bca997992e5151165277a575e98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.3 | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】已知
分别为双曲线
的右焦点和右顶点,过
作
轴的垂线在第一象限与双曲线交于点
,
的延长线与双曲线在第一象限的渐近线交于点
,若
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56bfbaabe3fa71658b68fe4a7f1ca5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88cc547d3aa1e43a0e58f9c036bf7883.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】圆心与抛物线
的焦点重合,且被抛物线准线截得的弦长为4的圆的标准方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知双曲线
与抛物线
的一个交点为
,
为抛物线的焦点,若
,则双曲线的渐近线方程为
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572942391549952/1572942397677568/STEM/6446e2e2766f407e9ddb166bbc115d49.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572942391549952/1572942397677568/STEM/b56c8988408e4f01b910ec666caca703.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572942391549952/1572942397677568/STEM/c1a780a4ef774237ae5f84a0539b071a.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572942391549952/1572942397677568/STEM/c19719bb638b431ca22d6363f3b64cac.png)
![](https://img.xkw.com/dksih/QBM/2016/7/27/1572942391549952/1572942397677568/STEM/85c4e64d68b846fbafdd90d1733b515e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次