已知
分别是双曲线
的左、右焦点,
为双曲线右支上异于顶点的任意一点,若
内切圆圆心为
,则圆心
到圆
上任意一点的距离最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1892b7c3cd7bea116f532f66fba44662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e265ce107592c375b78007107a9c00a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
20-21高二上·广西百色·期末 查看更多[3]
更新时间:2021-02-04 16:16:15
|
相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】已知圆
,若圆C上有且仅有一点P使
,则正实数a的取值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c8ed5ecf78bd5ab1d0130a1722b3b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
A.2或4 | B.2或3 | C.4或5 | D.3或5 |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】若圆
的圆心在直线
左边区域,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef27184ee3c21d1908e01d57dfec49d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fbef0a1750d3f9a0ac59a7677ec833a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.R |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐1】已知
,
分别是双曲线C:
的左、右两个焦点,点M在双曲线的右支上,且
,则
( )
![](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/2d34cf4ed961f4052ed35c7475c7d32e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b310a46433b6104ee1d71c06211456e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52bc5b48e25ce5f71d53abe3a84d1e17.png)
A.30° | B.45° | C.60° | D.90° |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】已知
为双曲线
的左焦点,过点
的直线与圆
交于
两点(
在
之间),与双曲线
在第一象限的交点为
为坐标原点,若
,则双曲线
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b427de4d7fe3b4982cf44930f778a00f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bfa3dc87f83e5c62976e01484dc92f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876f208635a511c8dc89da1dad21c868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb2eab6ab69649444e92e949c41a746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次