名校
1 . 如图,椭圆
,圆
,椭圆
的左、右焦点分别为
,过椭圆上一点
和原点
作直线
交圆
于
两点,若
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a171122bf8261a6f7c40b3790fea3d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fa27fccbb61045fb30f50c7b271082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d2327f0b8bff97272db0c0db513be9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616f2c208e4cf39c267c54c4e06487c6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/bba62211-1c05-484e-9a8d-9bc6ad699179.png?resizew=191)
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解题方法
2 . 已知直线
与椭圆
交于
两点(直线
的斜率大于0),且
,若
的面积为
,则直线
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45b8b000c9c286bff8a480dbf03b513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/072c32b9948144d040a9a83f8d11ea8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
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名校
3 . 已知椭圆
:
的离心率为
,四个顶点构成的四边形的面积为12,直线
与椭圆
交于
、
两点,且线段
的中点为
,则直线
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b85acb5a868b0ff2a17b1ca926dd43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2018-12-17更新
|
1070次组卷
|
3卷引用:【全国百强校】江西省南昌市第二中学2018-2019学年高二上学期第一次月考数学(文)试题2
4 . 已知椭圆的焦点为
,
,其中
,直线
与椭圆相切于第一象限的点
,且与
,
轴分别交于点
,
,设
为坐标原点,当
的面积最小时,
,则此椭圆的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dc791ae552024ea0df7905bf190f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace7c9e3da8613175ca07c54c116127a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38d4b97cf6e046373e984ffa7c8b76ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/d053b14c8588eee2acbbe44fc37a6886.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d124b231bf2cd3746f35e6c68cd7178f.png)
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名校
5 . 对于曲线
,若存在点
和常数
,过点
任引直线分别交
于
(均异于点
),若
,那么称曲线
与
相似,相似比为
,点
为相似中心.则下列各组曲线中,坐标原点
是其相似中心的是
.(把所有正确结论的序号都填上)
①
; ②
; ③
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bcb166b53a49e393871bcb14a528792.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237c115d5b39d761e1cbcae031070b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad4cfc65766c9b0799c928075cc20f.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/f0a532e15e232cb4b99a8d4d07c89575.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/836f2cd7c1bf45a865b7d6bcb3e8f2d5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b112659d1a9e23b272da33b2833f06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7214266d9a3342183ce6efd34aa4cb22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97122dabde18b83dc228e37351a9ce8.png)
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2018-04-04更新
|
584次组卷
|
2卷引用:北京市北京八中2018届高三第二次月考数学理科试题
名校
6 . 已知椭圆
:
,过点
作两条斜率互为相反数且不平行于坐标轴的直线,分别与椭圆
相交于异于
的不同两点
,则直线
的斜率为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c46ab26e2d950296e9edb81bb20bdcff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f18252ef51f98a0e8f2d25ceba46991.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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2018-02-06更新
|
574次组卷
|
3卷引用:四川省成都市2017-2018学年高二上学期期末调研考试数学(文)试题
四川省成都市2017-2018学年高二上学期期末调研考试数学(文)试题四川省成都外国语学校2017-2018学年高二上学期期末考试数学(文)试题(已下线)湖南省株洲市2023届高三下学期一模数学试题变式题11-16
13-14高二下·安徽·期中
名校
解题方法
7 . 椭圆
上的点到直线
的最大距离是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d12ebd10f6c0bcf98be52c32b107f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514fdbb5bb097926b912d672a95fdf70.png)
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2018-11-12更新
|
1798次组卷
|
12卷引用:2013-2014学年安徽师大附中高二下学期期中考查理科数学试卷
(已下线)2013-2014学年安徽师大附中高二下学期期中考查理科数学试卷2015-2016学年河北邯郸曲周县一中高二上学期第二次月考理科数学卷2015-2016学年河北省邯郸市曲周一中高二上第二次月考文科数学试卷活页作业10-椭圆方程及性质的应用(2018年数学同步优化指导(北师大版选修1-1))【校级联考】黑龙江省牡丹江市第三高级中学2018-2019学年高二上学期期中考试数学试题2020届河南省鹤壁市高级中学高三下学期线上第二次模拟数学(文)试题湖南省长沙市明德中学2019-2020学年高二上学期第一次月考数学试题(已下线)专题05 平面解析几何-2020年高三数学(文)3-4月模拟试题汇编内蒙古包头市第四中学2020-2021学年高二上学期期中考试数学试题沪教版(2020) 选修第一册 领航者 第2章 单元测试(二)河南省南阳华龙高级中学2021-2022学年高二上学期12月月考文科数学试题河南省信阳市商城县观庙高级中学2021-2022学年高二上学期12月月考数学(文)试题
名校
解题方法
8 . 已知椭圆
的上、下顶点、右顶点、右焦点分别为B2、B1、A、F,延长B1F与AB2交于点P,若∠B1PA为钝角,则此椭圆的离心率e的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
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2018-01-12更新
|
1321次组卷
|
4卷引用:2017-2018学年黑龙江省黑河市孙吴一中高二 (上)期中数学试卷(理科)
2017-2018学年黑龙江省黑河市孙吴一中高二 (上)期中数学试卷(理科)黑龙江省哈尔滨市第六中学2019-2020学年高三上学期第三次调研数学(文)试题(已下线)专题5.3 解析几何中的范围问题-玩转压轴题,进军满分之2021高考数学选择题填空题(已下线)9.3 椭圆(精练)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)
2018高二·江苏·专题练习
名校
9 . 已知椭圆
的离心率为
,
为左顶点,点
在椭圆
上,其中
在第一象限,
与右焦点的连线与
轴垂直,且
,则直线
的方程为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88dcdac6cf7fd123f661ac6c02d4c030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa099109c47774cd5f9e82b4f02dbd63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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解题方法
10 . 在直角坐标系
中,已知直线
与椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
相切,且椭圆
的右焦点
关于直线
的对称点
在椭圆
上,则
的面积为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c5c7292c9c60a8fe8c872b37178c06b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685ff7987f880d4fc192527558762544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc869125145c0139d92490a41bd3918.png)
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2017-12-28更新
|
1044次组卷
|
3卷引用:广州市2018届高三第一学期第一次调研测试文科数学试题