名校
解题方法
1 . 已知椭圆
的中心
在坐标原点,焦点在
轴上,且经过点
,离心率为
.
(1)求椭圆
的方程;
(2)是否存在过点
的直线
交椭圆
于点
,且满足
.若存在,求直线
的方程;若不存在,请说明理由.
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e8fdcb41998ea6eada5732a9e3fba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7c743063c2ced3b1dad7a3946e7acef.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/04d4315d7c1396985e292ba12e747524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1023bacd113eb052c085f04824b88230.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2 . 已知椭圆
以直线
所过的定点为一个焦点,且短轴长为4.
(1)求椭圆
的标准方程;
(2)过点
的直线
与椭圆
交于
,
两个不同的点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afef290d0ebd0735921b40085a1b2d9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca0b4afd16b79370532de44989d6c43d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
您最近一年使用:0次
2021-07-29更新
|
775次组卷
|
8卷引用:四川省广安市岳池县2021-2022学年高二上学期期中考试数学(理)试题
四川省广安市岳池县2021-2022学年高二上学期期中考试数学(理)试题四川省宜宾市第四中学校2022-2023学年高二上学期期中考试数学(文)试题四川省宜宾市第四中学校2022-2023学年高二上学期期中考试数学(理)试题四川省广元市2020-2021学年高二下学期期末数学(文科)试题(已下线)一轮复习大题专练56—椭圆(面积最值问题1)—2022届高三数学一轮复习(已下线)3.1.2 椭圆的简单几何性质(精讲)-2021-2022学年高二数学一隅三反系列(人教A版2019选择性必修第一册)甘肃省武威第一中学2021-2022学年高三上学期开学考试文科数学试题黑龙江省牡丹江市第二高级中学2023-2024学年高二上学期10月月考数学试题
名校
解题方法
3 . 已知椭圆
的上、下焦点分别为
,离心率为
,点
是椭圆上一点,
的周长为
.
(1)求椭圆
的方程;
(2)过点
的动直线
交
于
两点,
轴上是否存在定点
,使得
总成立?若存在,求出定点
;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f04443a0c1cf4808aea741c9f9379b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5eb4f6a7cd67eb76bc9f8b353c4059d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4ce3060c2d71208a70746bffba9cc66.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0575f2f3232896798af0542d98bf3b2d.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111b7407405cff5b830fe0f7f491687d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2021-07-23更新
|
749次组卷
|
4卷引用:四川师范大学附属中学2021-2022学年高二下学期期中考试数学(理)试题
四川师范大学附属中学2021-2022学年高二下学期期中考试数学(理)试题安徽省宣城中学2020-2021学年高二下学期期中文科数学试题内蒙古赤峰二中2021-2022学年高三上学期第一次月考数学(文)试题(已下线)专题31 圆锥曲线存在性问题的五种类型大题100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)
名校
解题方法
4 . 已知椭圆
(
)经过点
,且离心率为
.
(1)求椭圆的方程;
(2)椭圆长轴上两个动点
,
满足
,直线
,
分别交椭圆于点
,
(均不同于
),求证:直线
的斜率为定值.
![](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/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆的方程;
(2)椭圆长轴上两个动点
![](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/c5929048ce5167abc4750589f2e21841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
5 . 已知椭圆E:
的左焦点为F,过点P(2,t)作椭圆E的切线PA、PB,切点分别是A、B,则三角形ABF面积最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
A.![]() | B.1 | C.2 | D.![]() |
您最近一年使用:0次
2021-06-22更新
|
1900次组卷
|
8卷引用:四川省雅安中学2020-2021学年高二下学期期中考试数学(理)试题
四川省雅安中学2020-2021学年高二下学期期中考试数学(理)试题(已下线)期中重难点突破专题03-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)(已下线)考点40 椭圆-备战2022年高考数学(理)一轮复习考点帮(已下线)3.1椭圆(B 能力培优练)-2021-2022学年高二数学同步双培优检测(苏教版2019选择性必修第一册)(已下线)第三章 圆锥曲线与方程单元测试-2021-2022学年高二数学同步精品课堂讲+例+测(苏教版2019选择性必修第一册)(已下线)第01讲 椭圆-【帮课堂】2021-2022学年高二数学同步精品讲义(苏教版2019选择性必修第一册)新疆乌鲁木齐市第八中学2021-2022学年高二上学期第二次月考数学(问卷)试题(已下线)专题8-3 圆锥曲线小题综合 (讲+练)-2
名校
解题方法
6 . 已知平面内动点
到两定点
和
的距离之和为4.
(1)求动点
的轨迹E的方程;
(2)已知曲线
上点
处切线方程为
.若直线
与圆
相交于
两点,动点
在线段
上运动,从
向轨迹E作切线,切点分别为
;
(ⅰ)求证:直线
过定点;
(ⅱ)求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)已知曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d2bee88cd6394c15ed87aaec1991ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6a4781b020b879519321e05c299f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce74132c097ec6cda33b3c0ca61d37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe6cdd424b3ef519fe9a1ac430d2d199.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a37b2689f5b871a59b5ae4330f1e5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(ⅰ)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2021-06-18更新
|
470次组卷
|
2卷引用:四川省成都市石室中学2020-2021学年高二下学期期中考试数学(理)试题
名校
解题方法
7 . 已知椭圆
经过点
,且离心率为
.
(1)求椭圆的方程;
(2)设椭圆的左顶点为
,直线
与椭圆交于
,
两点,求证:不论
取何值,
的大小为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f718d4840a2fda33a6d38a8c121fc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)设椭圆的左顶点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b43637e53ef106a872c82935e4e1874.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f9c3b578fc0598d5ec6c79404c6cc2.png)
您最近一年使用:0次
名校
解题方法
8 . 已知圆
经过椭圆
的右焦点
,且经过点
作圆
的切线被椭圆
截得的弦长为
.
(1)求椭圆
的方程;
(2)若点
,
是椭圆
上异于短轴端点的两点,点
满足
,且
,试确定直线
,
斜率之积是否为定值,若是,求出这个定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b4bcb812c997db47214cb52c905f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5bb380097c89638d25c913c756383ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6936a976d29cddf21e06bbc43796c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
您最近一年使用:0次
2021-04-17更新
|
1234次组卷
|
6卷引用:四川省成都市双流区成都棠湖外国语学校2020-2021学年高二下学期期中数学理科试题
四川省成都市双流区成都棠湖外国语学校2020-2021学年高二下学期期中数学理科试题甘肃省2021届第二次高考诊断理科数学试题甘肃省2021届高三下学期二模试数学(理科)试题(已下线)押第20题 圆锥曲线-备战2021年高考数学(文)临考题号押题(全国卷2)(已下线)专题2.8 圆锥曲线-椭圆-2021年高考数学解答题挑战满分专项训练(新高考地区专用)甘肃省兰州外国语高级中学2021-2022学年高三上学期第一次适应性考试数学(理科)试题
名校
解题方法
9 . 已知椭圆
:
,直线l:
过椭圆的左焦点F,与椭圆
在第一象限交于点M,三角形
的面积为
,A、B分别为椭圆的上下顶点,P、Q是椭圆上的两个不同的动点
(1)求椭圆
的标准方程;
(2)直线
的斜率为
,直线
的斜率为
,若
,问直线
是否过定点,若过定点,求出定点;否则说明理由.
![](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/0717cf6826af5a27b5956f3b2943168f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81f0eb2d7c761f1915d767688c0d47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9626bd07f966ea26a51dcd8ceba04ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6105ce854fe02662a1238be7bc30d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e65a1bb6ed699e5b5149a016d8fdded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2021-04-01更新
|
1709次组卷
|
9卷引用:四川省成都市成都外国语学校2020-2021学年高二下学期期中数学文科试题
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名校
解题方法
10 . 已知椭圆
的左右顶点分别为
,椭圆
上不同于
的任意一点
,直线
和
的斜率之积为
.
![](https://img.xkw.com/dksih/QBM/2021/2/4/2650929514004480/2652141023166464/STEM/433921c5-bd52-4b97-ae99-dd5319ffb5ad.png?resizew=260)
(1)求椭圆
的标准方程;
(2)过椭圆内一点
,作一条不垂直于
轴的直线交椭圆于
两点,点
和点
关于
轴对称,直线
交
轴于点
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728b3360d5c6394457b907f1cbc31a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://img.xkw.com/dksih/QBM/2021/2/4/2650929514004480/2652141023166464/STEM/433921c5-bd52-4b97-ae99-dd5319ffb5ad.png?resizew=260)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆内一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a758f5f679810a247319fa8162c113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432aae51854129e8c10f7c34c0c3a79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb74ca8fc86ddef279e33f31c1fedda.png)
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