解题方法
1 . 已知椭圆
与双曲线
有公共焦点,记
与
在
轴上方的两个交点为
,
,过
的右焦点作
轴的垂线交
于
,
两点,若
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b41d3c3efd06884944f2fafeea9d5da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19c719df511072fd3c00f4dd2a233f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知双曲线
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07112aa7a96ad046445ecf65c566a9ec.png)
A.![]() ![]() | B.![]() ![]() ![]() |
C.![]() | D.![]() ![]() ![]() |
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2024-03-21更新
|
1227次组卷
|
3卷引用:河北省邯郸市2024届高三第三次调研考试考试数学试题
名校
解题方法
3 . 已知双曲线
的一条渐近线方程为
,且
与椭圆
有公共的焦点,则
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a9b769d70cb6f29e965c800921c8ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eeb5e09ab3410da188e486646e52760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 设
,
是双曲线
的左、右焦点,
是
上的一点,若
的一条渐近线的倾斜角为
,且
,则
的焦距等于( )
![](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/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2d9a1a93e47dc1e50ba2779ef480724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57fea2227147641b0ce513d419a02309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.1 | B.![]() | C.2 | D.4 |
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|
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解题方法
5 . 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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6 . 已知曲线C:
(
且
)的左、右焦点分别为
,
,直线
与
交于点
,
.
(1)若
,且四边形
是矩形,求
的值;
(2)若
是
上与
,
不重合的点,且直线
,
的斜率分别为
,
,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb783f89d6c82bb0b59f6f28e669dcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663acb9ca61a9d102de6d9ea5144601b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.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/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfffd420523729074995e9e55f464d4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76edc10b8d1df1db5fa8f1c1c780bc3e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1231f7ed4ee750149db85d8fe614ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdfc6a59392d1ac3cd89ddc0308864c.png)
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7 . 关于椭圆
与双曲线
的关系,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/751fc42c2d3e9c1efc429db0761484fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9c631ce40aec7055bfe5bbdbbabdc31.png)
A.焦点相同 | B.顶点相同 | C.焦距相等 | D.离心率相等 |
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8 . 已知双曲线的方程为
,则该双曲线的焦距为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4714c98ff5ed7679c197ca6c49a41.png)
A.2 | B.4 | C.![]() | D.6 |
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9 . 已知双曲线
的渐近线方程为
,则双曲线
的焦距为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfec6616c8296af8e7509c8378b0ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e095f36e0e343ad42516c4aa519da713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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10 . 已知双曲线C的方程为:
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff493a749b18a6e80c6763e1d276e85d.png)
A.实轴长为6 | B.渐近线方程为![]() |
C.顶点坐标为![]() ![]() | D.焦距为![]() |
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