解题方法
1 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
的左、右顶点分别为
,且
,离心率为
.
(1)求椭圆
的方程;
(2)设
是椭圆
上不同于
的一点,直线
,
与直线
分别交于点
.试判断以
为直径的圆是否过定点,若过定点,求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](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/01c74a907dda6bb7d9d56d009d9df253.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/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
解题方法
2 . 已知椭圆
(
),离心率为
,其左右焦点分别为
,
,P为椭圆上一个动点,且
的最小值为1.
(1)求椭圆C的方程;
(2)在椭圆C的上半部分取两点
(不包含椭圆左右端点),若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.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/f4ef569668e797b1e94257fd5f4384dd.png)
(1)求椭圆C的方程;
(2)在椭圆C的上半部分取两点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7714fb5e05d7e0f9a0e41014f00d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
解题方法
3 . 已知椭圆
,离心率为
,其左右焦点分别为
,
,点
在椭圆内,P为椭圆上一个动点,且
的最大值为5.
(1)求椭圆C的方程;
(2)在椭圆C的上半部分取两点M,N(不包含椭圆左右端点),且
,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08b9360ec6a0fc1e5be5caeec35f4645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b931faee548175c7895ac9eeca6fed83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a21c22883aa4d79a5d254d0f51af66.png)
(1)求椭圆C的方程;
(2)在椭圆C的上半部分取两点M,N(不包含椭圆左右端点),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf7714fb5e05d7e0f9a0e41014f00d9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3fea3fe4b4f81ac9d4763293048969.png)
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名校
4 . 已知椭圆
的右顶点
,P为椭圆C上的动点,且点P不在x轴上,O是坐标原点,
面积的最大值为1.
(1)求椭圆C的方程及离心率;
(2)过点
的直线
与椭圆C交于另一点Q,直线
分别与y轴相交于点E,F.当
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b4dcc093218443f71a046b6df94bbe.png)
(1)求椭圆C的方程及离心率;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da77acb6d916840f572717ddfec88d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601fdaa86a1ecc821be53f7e50715bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35d58f9019097bd05037aefd5c322916.png)
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2023-01-06更新
|
1012次组卷
|
4卷引用:北京市朝阳区2023届高三上学期数学期末试题
解题方法
5 . 已知椭圆
过点
,且离心率是
.
(1)求椭圆
的方程和短轴长;
(2)已知点
,直线
过点
且与椭圆
有两个不同的交点
,问:是否存在直线
,使得
是以点
为顶点的等腰三角形,若存在,求出直线
的方程;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b5e076078240e0c5ad9763a9824d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0e705301752424a492f6277ed7774e.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆C:
与椭圆
的离心率相同,
为椭圆C上一点.
(1)求椭圆C的方程.
(2)若过点
的直线l与椭圆C相交于A,B两点,试问以AB为直径的圆是否经过定点
?若存在,求出
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9545456fff81a9f9c108f0451dba52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c763113a1fc48e8acc83787b8cd24eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd54a1a3b5f750da1e14552b6066a7c.png)
(1)求椭圆C的方程.
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014608ef148beda3ad9db3ab2efbb2a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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2022-12-17更新
|
1727次组卷
|
13卷引用:甘肃省靖远县第一中学等2校2023届高三上学期期末文科数学试题
甘肃省靖远县第一中学等2校2023届高三上学期期末文科数学试题四川省部分学校2022-2023学年高三上学期12月大联考理科数学试题四川省部分学校2022-2023学年高三上学期12月大联考文科数学试题河北省唐山市部分学校2023届高三上学期12月月考数学试题贵州省毕节市部分学校2023届高三上学期12月联合考试数学(理)试题贵州省毕节市部分学校2023届高三上学期12月联合考试数学(文)试题山东省2022-2023学年高二上学期12月质量检测联合调考数学试题北京市中国人民大学附属中学2022-2023学年高二上学期数学期末复习试题(3)内蒙古赤峰实验中学、桥北四中2022-2023学年高三下学期大联考数学试题(文科)青海省西宁市大通回族土族自治县2023届高三一模数学(文)试题(已下线)专题15解析几何(解答题)山东省济宁市邹城市2022-2023学年高二上学期期末数学试题广东省2022-2023学年高二上学期12月质量检测联考数学试题
名校
解题方法
7 . 已知椭圆
的左焦点为
,过原点
的直线与椭圆
交于
,
两点,若
,且
.
(1)求椭圆
的离心率;
(2)椭圆
的上顶点为
,不过
的直线
与椭圆
交于
,
两点,线段
的中点为
,若
,试问直线
是否经过定点?若经过定点,请求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f1276de091642e40f844900c637ca2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c161223782143bc028ca2b6b7d9686.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99b1fb09b447a2a1d6e9e4702d695b3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c26c8e532fd4e965cb4062c9e8e463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2022-11-30更新
|
1494次组卷
|
8卷引用:江西省五市九校协作体2023届高三上学期第一次联考数学(文)试题
江西省五市九校协作体2023届高三上学期第一次联考数学(文)试题江西省五市九校协作体2023届高三上学期第一次联考数学(理)试题(已下线)江西省五市九校协作体2023届高三第一次联考文科数学试题变式题21-23四川省遂宁市安居区安居育才中学校2022-2023学年高三下学期2月月考数学理科试题辽宁省本溪市高级中学2023-2024学年高三上学期高考适应性测试(一)数学试题湖南省怀化市2023-2024学年高三下学期第二次模拟考试数学试题江苏省盐城中学2022-2023学年高二上学期期中数学试题(已下线)期中真题必刷椭圆60题(4个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
名校
解题方法
8 . 在平面直角坐标系xOy中,椭圆
的左、右焦点分别为
,
,离心率为
.点P是椭圆E上的一个动点,且P在第一象限.记
的面积为S,当
时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/cac5f8e0-9062-4e44-85d4-d9995736b0ac.png?resizew=193)
(1)求椭圆E的标准方程;
(2)如图,
,
的延长线分别交椭圆于点M,N,记
和
的面积分别为
和
.求证:存在常数λ,使得
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.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/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dfb22c6f1c155747100e7536cd1abd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a87630cc4a969ccd0e4f8aeb5ff6588.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/26/cac5f8e0-9062-4e44-85d4-d9995736b0ac.png?resizew=193)
(1)求椭圆E的标准方程;
(2)如图,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b42fc33bcfc63ec2f4940ccd3f862400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12bdb8e9f4bd99efe2c4cdb7234b1298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2882623cba378bd66d6b7859d24c5f0f.png)
您最近一年使用:0次
2022-11-25更新
|
730次组卷
|
4卷引用:广东省珠海市第一中学2024届高三上学期期末模拟数学试题(二)
9 . 已知椭圆
)的上下顶点分别为
和
,左右顶点分别为
和
,离心率为
.过椭圆
的左焦点
的直线
交
于点
(都异于
为
中点.
(1)求椭圆
的方程;
(2)记直线
的斜率分别为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643a1b9caef274916ea751e59be0bafb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3544997cc034ed882c0d0a3bdbf5f957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83e4bff52bcceadbba8617c5a9fe0fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
(2)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/723b36262e4546c3be530b8ef802c156.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c65902e35640cf2c8d4111c36b40145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1524f74e30ee172fdd2fa576319198ca.png)
您最近一年使用:0次
2022-11-24更新
|
547次组卷
|
2卷引用:四川省绵阳中学2022-2023学年高三上学期期末模拟检测试题
名校
解题方法
10 . 已知椭圆C:
经过点
,且离心率为
.
(1)求椭圆C的方程;
(2)椭圆C上的两个动点M,N(M,N与点A不重合)直线AM,AN的斜率之和为4,作
于H.问:是否存在定点P,使得
为定值.若存在,求出定点P的坐标及
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(1)求椭圆C的方程;
(2)椭圆C上的两个动点M,N(M,N与点A不重合)直线AM,AN的斜率之和为4,作
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41e9c029e8c099fecbf785a18559196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9e6b473819e4e88341e2d98004de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa9e6b473819e4e88341e2d98004de48.png)
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2022-11-10更新
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5卷引用:甘肃省酒泉市瓜州县第一中学2024届高三上学期期末数学试题