已知双曲线
的左、右焦点分别为
,
,点
为左支上任意一点,直线
是双曲线的一条渐近线,点
在直线
上的射影为
,且当
取最小值5时,
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65de389588f0e9ec07f0b7f4d444ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c709c88d9eb5390e079011d2f2593a95.png)
A.![]() | B.![]() | C.![]() | D.10 |
更新时间:2019-04-24 23:13:34
|
【知识点】 求双曲线中的最值问题
相似题推荐
单选题
|
适中
(0.65)
名校
解题方法
【推荐1】双曲线
的右焦点为
,
是双曲线上一点,点
满足
,
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c58fa4a337f0b81b991fb32e8e6e3c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/1299a6d7e782e1b92698e6b5d20d520b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78770715c68f03fdb5f35eb29195d6bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c37a608b9a139cc42e3b293585e877bf.png)
A.3 | B.2 | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】已知双曲线
的左顶点为
,右焦点为
,
为双曲线右支上一点,则
最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c477e5ade921ffa8377c4719319380ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc629c64d2c860a57590445e29557868.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次