已知双曲线
:
的左、右焦点分别为
,
,过
的直线与
的左、右两支分别交于
两点,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ed840542d3beb129da3c00b6a05e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54b51c9fa471e32957ea3a2466c3023.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2023-12-14 11:25:02
|
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【推荐1】已知双曲线C:
的左、右焦点为
,
,过
的直线l分别交双曲线C的左、右两支于A、B.若
,则双曲线C的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](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.![]() | D.![]() |
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【推荐2】已知双曲线
的左、有焦点分别为
,
,实轴长为4,离心率
,点Q为双曲线右支上的一点,点
.当
取最小值时,
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.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/e0276541c12707b24d2f06ea3d976cf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e79f49a85a44ca8c61341e913341f7c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7409aabec2dbd4b3b296fd9b158a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39387d3ab691f41564b304e66fb51b5f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐3】已知椭圆
的离心率为
,双曲线
的离心率为
,两曲线的焦点相同,且
,若
为两曲线在第一象限的交点,且满足
(
为坐标原点,
为右焦点),则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9663f73959d839d5b7e9403ed2843be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33558881906c228c262ff8024dcfc4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78e87e5bd05a5946a15b253f1ec990e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33a99190a8fd29c36d5a002e3197cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec0f4ff707610cd9f48a5abe57bb1e85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955c7c7a29bc124b39aa40e7c230dbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034f83062bcb44a150a4b8b7c48c0eb7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】双曲线
与椭圆
的焦点相同,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7e226a40cb115121ec380a5b06d703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996e27bd38f73ac37970225f09a9ee95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.1 | B.![]() | C.1或![]() | D.2 |
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【推荐2】双曲线
:
的两个焦点分别是
与
,焦距为8,
是双曲线上的一点,且
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc111f02ab51653820180a5d5ae740ee.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27ad0481b4eba360acafcc03919d4a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2675e721a547386255bae4dfdca9ff2.png)
A.9 | B.9或1 | C.1 | D.6 |
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