已知点
,
,动点A满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843e3f8c3314d51a322c6122a13745c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c477662c046daefe58026249658b6d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e9d29951f9b1bb0bf4ca0d42b3995f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ffbd97467518d309bffa46df98f3fd4.png)
A.7 | B.5 | C.3 | D.1, |
更新时间:2020-02-28 22:42:35
|
【知识点】 求双曲线中的最值问题
相似题推荐
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】已知
,
分别是双曲线
的左、右焦点,动点
在双曲线
的右支上,则
的最小值为( )
![](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/92ebc3c3791c78edee1568c61382938a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4054737341e6ced85e160c8785d6d92.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】设
是抛物线
上的动点,
是
的准线上的动点,直线
过
且与
(
为坐标原点)垂直,则
到
的距离的最小值的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53c2d5ba20426f126eaba9d9cc895e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eacd9c1ce5e65fec29c32f40d86b73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eacd9c1ce5e65fec29c32f40d86b73d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/701f3b0e2bedfe5195443459072d798e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次