已知双曲线
的实轴长为
,焦距为
,左、右焦点分别为
,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7f27ebcef70a3ebbbe8d2e53ea0896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
A.双曲线![]() ![]() | B.双曲线![]() ![]() |
C.![]() ![]() | D.过![]() ![]() |
更新时间:2021-09-11 16:22:33
|
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【推荐1】圆
:
和圆
:
的公共点为
,
,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f919bd3dde10dbbc076f7ec5149699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
A.公共弦![]() ![]() | B.公共弦![]() ![]() |
C.线段![]() ![]() | D.![]() |
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【推荐2】已知直三棱柱
中,
,点
是线段
上一点(包含端点),则下列说法正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/348d2ecc-5671-4b4c-9659-cceef6318d39.png?resizew=170)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1d40e591df390ac85e6857df821b5b1.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/348d2ecc-5671-4b4c-9659-cceef6318d39.png?resizew=170)
A.点![]() ![]() ![]() |
B.异面直线![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() |
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【推荐1】已知椭圆
的左、右焦点分别为
,
,左、右顶点分别为
,
,
为椭圆上一点,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.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/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
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A.椭圆![]() ![]() |
B.满足条件![]() ![]() |
C.以![]() ![]() ![]() ![]() ![]() |
D.![]() ![]() |
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【推荐2】若双曲线
的实轴长为6,焦距为10,右焦点为F,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
A.过点F的最短的弦长为![]() | B.双曲线C的离心率为![]() |
C.双曲线C上的点到点F距离的最小值为2 | D.双曲线C的渐近线为![]() |
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【推荐1】已知双曲线
(
)的左、右焦点分别为F1(−c,0),F2(c,0).直线
与双曲线左、右两支分别交于A,B两点,M为线段AB的中点,且|AB|=4,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c55e01348f3d583dfd8acfdb5863dc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da724b06833a269a436448f256c139c3.png)
A.双曲线的离心率为![]() | B.![]() |
C.![]() | D.![]() |
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适中
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【推荐2】已知抛物线
的准线过双曲线
(
,
)的左焦点F,且与双曲线交于A,B两点,O为坐标原点,
的面积为
,那么下列结论中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.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/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a848020a0d6420af76ec7bbadc9cdf5.png)
A.双曲线C的方程为![]() |
B.双曲线C的两条渐近线的夹角为60° |
C.点F到双曲线C的渐近线的距离为![]() |
D.双曲线C的离心率为2 |
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【推荐1】如图,已知双曲线:
的左右焦点分别为
,
,以
为直径的圆与双曲线在第一象限交于点B,连接
,
,
与双曲线左支交于点P,与渐近线分别交于点M,N,则( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/7/cd3112d2-af1b-4c47-9b43-369b201c274b.png?resizew=202)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
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A.![]() |
B.![]() |
C.过![]() |
D.点B到两条渐近线的距离的积为![]() |
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【推荐2】已知
为双曲线C:
的左、右焦点,过
的直线交双曲线C右支于P,Q两点,则下列叙述正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
A.若![]() ![]() ![]() | B.弦![]() ![]() |
C.点P到两渐近线的距离之积为![]() | D.点P与直线![]() |
您最近一年使用:0次