从双曲线
的左焦点
引圆
的切线,切点为
,延长
交双曲线的右支于点
,若
为线段
的中点,
为坐标原点,则
与
的大小关系为( )
![](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/1e4be819fc47b2aa19ab2022b3dfeb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ffda0c209f06e21770aeab0abc8cbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2293f93791a597bf0162411f3395f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ed04eeb128cdc3b9506db3cbf0bb29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9f2416d1f75a45a314331146550832e.png)
A.![]() | B.![]() | C.![]() | D.不确定 |
更新时间:2023-12-15 13:40:50
|
【知识点】 双曲线定义的理解
相似题推荐
单选题
|
适中
(0.65)
【推荐1】设
是双曲线
的两个焦点,P是双曲线上任意一点,过
作
平分线的垂线,垂足为M,则点M到直线
的距离的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c465114dc2665d74246240b1d4d26ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277e54618dcf6e6dd3f50f10d653f4f.png)
A.2 | B.4 | C.6 | D.8 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知
,
,
,
.给出以下三个命题:
①分别过点
,
,作
的不同于
轴的切线,两切线相交于点
,则点
的轨迹为椭圆的一部分;
②若
,
相切于点
,则点
的轨迹恒在定圆上;
③若
,
相离,且
,则与
,
都外切的圆的圆心在定椭圆上.
则以上命题正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1038157bf2a0b70de3553cadadbbf618.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c54f5a4e3c3eeb82371a0463f3b353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29980d54acafa1b94abbecdc618e5022.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b503e74ac0652ad46435ae29c0987cd.png)
①分别过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abf5dc3e0ad4e38b5f9c339b0e2e6c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286ef09c35e35cc8c9344ade2a18bb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e69fd92eceb49fed10c4b50723d13d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f7ba050bb69ab55bdcb96f935f5922.png)
则以上命题正确的是
A.①② | B.①③ | C.②③ | D.①②③ |
您最近一年使用:0次