已知双曲线
右支上一点
到右焦点的距离为
,则该点到左准线的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a44342c2ee26a279265225982499b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
A.![]() | B.![]() | C.![]() | D.![]() |
20-21高二上·江苏无锡·期中 查看更多[3]
江苏省无锡市锡山高级中学2020-2021学年高二上学期期中数学试题江苏省扬州中学2020-2021学年高二上学期12月月考数学试题(已下线)专题2.5 圆锥曲线的共同性质-2020-2021学年高二数学课时同步练(苏教版选修1-1)
更新时间:2020-11-21 12:49:20
|
相似题推荐
单选题
|
较易
(0.85)
名校
【推荐1】已知
是平面内两个不同的定点,
为平面内的动点,则“
的值为定值
,且
”是“点
的轨迹是双曲线”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d1a97f8292b06dcbb3a78351e66359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c0decbac3134ee6d740e7bf20e1587a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.充分不必要条件 | B.必要不充分条件 | C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】已知双曲线
的左、右焦点分别为
,
,P为双曲线右支上一点,且
的中点M在以O(O为坐标原点)为圆心,
为半径的圆上,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311f4e2e5bdfbb147f32a6421c80a8f7.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/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f95a62596525307343da7ff4b86cde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e203545563ef6c33968cd9fab532638e.png)
A.12 | B.6 | C.4 | D.2 |
您最近一年使用:0次
单选题
|
较易
(0.85)
名校
解题方法
【推荐1】已知
,
是双曲线
:
(
,
)的左,右焦点,直线
:
与双曲线
在第一象限的交点为
,且
,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/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45cc81cfaccc00aa4b7139de5a35a102.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07685a075c7f979540dab03664d01e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.3 | C.![]() | D.4 |
您最近一年使用:0次
单选题
|
较易
(0.85)
解题方法
【推荐2】已知左、右焦点为
的双曲线
过点
,若
为直角三角形,且
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3cb52b67f6f5b8970cd8cebd291204c.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
真题
【推荐1】双曲线
的右支上存在一点,它到右焦点及左准线的距离相等,则双曲线离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5ec7fa23be9cbe9a50607ea6bc8a4ff.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较易
(0.85)
真题
【推荐2】如果双曲线的两个焦点分别为
,一条渐近线方程为
,那么它的两条准线间的距离是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4775e8a74f14465ad71e7979e620ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bdeeb6f5e38e3464c357d00839a6ce.png)
A.![]() | B.4 | C.2 | D.1 |
您最近一年使用:0次