名校
解题方法
1 . 过椭圆
的右焦点
的直线交该椭圆于A、B两点,线段AB的中点为
,则椭圆E的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc485c6c7c65a4c982d163ef115bca48.png)
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解题方法
2 . 已知点
,
是椭圆
:
的左右焦点,且椭圆
的短轴长为
,离心率为
.
(1)求椭圆
的方程;
(2)若直线
过点
且斜率为2,与椭圆
交于
两点,求线段
的值.
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/827ccf0c04aa941ba20d5f4c6068b46b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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名校
3 . 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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2024-01-24更新
|
283次组卷
|
2卷引用:重庆市万州区万州第三中学2023-2024学年高二下学期入学考试数学试题
解题方法
4 . 已知椭圆
,
是椭圆
的一条弦
的中点,点
在直线
上,则椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38826e5b816f595263672d0400676bb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12198cd33e43615a1c1304a54ce49eaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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名校
解题方法
5 . 椭圆C:
过点P(
,1)且离心率为
,F为椭圆的右焦点,过F的直线交椭圆C于M,N两点,定点
.
(1)求椭圆C的方程;
(2)若
面积为3
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f91fb2625ab142edde5378a54af411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993769b494e12c21dff0ee7c53a4a49f.png)
(1)求椭圆C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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名校
6 . 已知椭圆
的左、右焦点分别为
,
,过点
的直线
交椭圆于
,
两点,若
的最小值为4,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf825c777fa9ee4fc0d707916a1440b5.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/0f85fca60a11e1af2bf50138d0e3fe62.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/3f4dfec890cdfdda355e19463f3be813.png)
A.椭圆的短轴长为![]() |
B.![]() |
C.离心率为![]() |
D.椭圆上不存在点![]() ![]() |
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2024-01-09更新
|
1387次组卷
|
5卷引用:重庆市黔江中学校2023-2024学年高二上学期11月考试数学试题
名校
解题方法
7 . 已知圆
与椭圆
为椭圆
的右顶点,由点
作圆
的两条切线其夹角为
,则椭圆
的离心率是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7ff80531c3eae1a33f9bd6c83e1ae75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf6163c3bf43d31089d8377ab33fb7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
8 . 椭圆
左右焦点为
,离心率为
,点
在椭圆
上.
(1)求椭圆
的标准方程;
(2)倾斜角为
的直线
过椭圆的右焦点
交椭圆于
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1522bb65cf4212528ab12c6b564d585c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2023-11-23更新
|
739次组卷
|
2卷引用:重庆市第十八中学2023-2024学年高二上学期期中学习能力摸底数学试题
名校
解题方法
9 . 已知
是椭圆
上一点,
、
分别是椭圆的左、右焦点,若
的周长为6.且椭圆的离心率为
,则椭圆方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-07更新
|
765次组卷
|
3卷引用:重庆市外国语学校2023-2024学年高二上学期期中数学试题
重庆市外国语学校2023-2024学年高二上学期期中数学试题(已下线)3.1.2 椭圆的几何性质(10大题型)-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)广东省珠海市斗门区第一中学2023-2024学年高二上学期第二次阶段考试数学试题
名校
解题方法
10 . 已知椭圆方程为
,则该椭圆离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/628b55369f35947a733cce4f62e8f6d3.png)
您最近一年使用:0次