解题方法
1 . 已知双曲线
的左、右焦点分别为B,C,以BC为直径的圆与渐近线交与点A,连接AB与另一条渐近线交与点E,
为原点,
,且
.若
在
上的投影向量为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/888f3f66a185ab290254e17c251d63ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c916d5b02f278ee842393dab6dcce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22c55b0570e6d6f6938c62d6a56abb09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca902cd1857b0b95703521972a4214eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知双曲线
的一条渐近线方程为
,则
的焦距为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2628d752d4a37103b0c8b8211af7a1ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87bb1a1ca81f6e17940926aa259f04c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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3 . 已知双曲线
的左、右焦点分别为
,
,点P在直线
上.当
取最大值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e1aa8ad8272eac52b680547e47bf00.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6cf8bc908b192921416bb2d958ed539.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/19cba91dc2ff8cd1d5771f06f66f9d48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e1aa8ad8272eac52b680547e47bf00.png)
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解题方法
4 . 设焦距相同的椭圆
和双曲线
相交于分别位于第一象限、第二象限的
两点,两圆锥曲线的公共左焦点为
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f036026cd92e9ad059c3f22a7658638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5117e82062dc63c4fb6c60a1673615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f446378529ca555617bb248055cf97.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 设F为双曲线
的右焦点,O为坐标原点.若圆
交C的右支于A,B两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e2872b941d9e4748a823d37f14335fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f8cb0e4f2335a997c29a3e578a21f0b.png)
A.C的焦距为![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-02-28更新
|
682次组卷
|
3卷引用:2024届高三星云二月线上调研考试数学试题
6 . 椭圆
经过双曲线
的焦点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81cde89a668563d25b404c15b8f0bb9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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解题方法
7 . 设双曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c56109d9e87fe7349baa26b0e130ed4.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
8 . 已知双曲线的标准方程为
,则该双曲线的焦距是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/163665c6433333f42d2ebdff823da330.png)
您最近一年使用:0次
解题方法
9 . 已知
,
分别是双曲线C:
(
)的左、右焦点,过
作一直线交C于M,N两点,若
,且
的周长为1.则C的焦距为___________ .
![](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/99b343054b22bb3d30eeec12c3ae4d0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85f0ec66ed29f6a7d502a9da85ab2760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656690e5d6fe1b44a4983086229f34ae.png)
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10 . 反比例函数
(
)的图像可以看作是由等轴双曲线经过旋转得到的,那么双曲线
的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef854dfcbba9b7dedc1bc52f6332b011.png)
A.![]() | B.![]() | C.4 | D.6 |
您最近一年使用:0次