名校
解题方法
1 . 记椭圆
:
与圆
:
的公共点为
,
,其中
在
的左侧,
是圆
上异于
,
的点,连接
交
于
,若
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4be819fc47b2aa19ab2022b3dfeb6f.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740bc50dfce975366f4d851b7c570d34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-27更新
|
804次组卷
|
5卷引用:河南省濮阳市2024届高三下学期第一次模拟考试数学试题
解题方法
2 . 已知为坐标原点,
,
分别是椭圆
:
的左、右焦点,点
是椭圆
上一点.若
,
,则
的离心率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-21更新
|
343次组卷
|
2卷引用:湖南省岳阳市湘阴县知源高级中学等多校2023-2024学年高二下学期入学考试数学试题
名校
解题方法
3 . 已知过坐标原点且异于坐标轴的直线交椭圆
于
两点,
为
中点,过
作
轴垂线,垂足为
,直线
交椭圆于另一点
,直线
的斜率分别为
,若
,则椭圆离心率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-19更新
|
635次组卷
|
2卷引用:江苏省镇江市2023-2024学年高三下学期期初考试数学试卷
解题方法
4 . 已知
为椭圆
的右焦点,
为
的左顶点,
为
上的点,且
垂直于
轴.若直线
的斜率为
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
5 . 椭圆
与双曲线
的离心率分别为
,若
,则双曲线
的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14bc72784bcebeed033bf402f63c882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25e4ce5437278a7ad7dfd81afe69f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f994a876391534efe497dc115a53e3fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba5ba67e53c373bf8e5264df1e68afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
6 . 已知椭圆
的焦距为2,且
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c5aea75d3f8a2aaeffaabc2b7c1a56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-08更新
|
799次组卷
|
3卷引用:江西省名校教研联盟2024届高三下学期2月开学考试数学试卷
名校
解题方法
7 . 已知
为椭圆C:
(
)的右焦点,
,B分别为椭圆
的上顶点和右顶点,若
的周长为
,则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9878a063abcb6098d10560f2bf2d4b71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-03-08更新
|
361次组卷
|
2卷引用:江西省五市九校2024届高三下学期2月开学联考数学试卷
名校
解题方法
8 . 已知点
是椭圆
的左顶点,过点
且斜率为
的直线
与椭圆
交于另一点
(点
在第一象限).以原点
为圆心,
为半径的圆在点
处的切线与
轴交于点
.若
,则椭圆
离心率的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f645d4b09fba53f971172cd2602c691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b32a39d07355dfa0395400f28b218cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-03-07更新
|
209次组卷
|
4卷引用:浙江省名校协作体2023-2024学年高二下学期开学适应性考试数学试题
浙江省名校协作体2023-2024学年高二下学期开学适应性考试数学试题上海市民办南模中学2023-2024学年高二年下学期初态考试数学试卷(已下线)专题4 求圆锥曲线的离心率(高三压轴小题大全)【练】(已下线)专题4 求圆锥曲线的离心率(高三压轴小题大全)【讲】
名校
解题方法
9 . 如图,
,
是双曲线
:
与椭圆
的公共焦点,点
是
,
在第一象限内的交点,若
,则下列选项正确的是( )
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acac8b38a645b428474006d802af038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/35e968a505471270f428d6416a90965f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/23/ad4b03e2-df62-421c-a4c8-f22f0b0f1c9b.png?resizew=184)
A.双曲线![]() ![]() | B.椭圆![]() ![]() |
C.椭圆![]() ![]() | D.![]() ![]() |
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2024-03-06更新
|
511次组卷
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8卷引用:山东省潍坊市国开中学2023-2024学年高二下学期开学收心数学试题
山东省潍坊市国开中学2023-2024学年高二下学期开学收心数学试题宁夏石嘴山市平罗中学2023-2024学年高二上学期第三次月考数学试题(尖子班)宁夏回族自治区2023-2024学年高二上学期期末测试数学训练卷(二)(范围:选择性必修第一册 第三章+选择性必修第二册 第四章)福建省龙岩市第一中学2023-2024学年高二上学期第三次月考数学试题(已下线)专题12 椭圆的定义及其应用+焦点三角形(期末选择题12)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)宁夏回族自治区银川市育才中学2023-2024学年高三上学期月考五文科数学试题(已下线)北京市中国人民大学附属中学2023-2024学年高二上学期期末练习数学试题(二卷)北京市人大附中2023-2024学年高二上学期期末数学试题
名校
解题方法
10 . 椭圆
的左右焦点分别为
,过
与长轴垂直的直线与椭圆交于
两点,若
为等边三角形,则椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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