名校
解题方法
1 . 如图,已知点P为椭圆
的上顶点.椭圆
以椭圆
的长轴为短轴,且与椭圆
有相同的离心率.
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629473603403776/2632620020432896/STEM/f4db192f-b156-4e2c-8fd0-b2deb893a716.png?resizew=245)
(1)求椭圆
的标准方程;
(2)过点P作斜率分别为
,
的两条直线
,
,直线
与椭圆
,
分别交于点A,B,直线
与椭圆
,
分别交于点C,D.
(i)当
时,求
;
(ii)若A,C两点关于坐标原点O对称,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de61bd2c8287c6b180069c313491229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/2021/1/5/2629473603403776/2632620020432896/STEM/f4db192f-b156-4e2c-8fd0-b2deb893a716.png?resizew=245)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点P作斜率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(i)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c45a09a04ac08300d3bdcbd3b8e49395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c388f1f7160d3397610633dfde015fa0.png)
(ii)若A,C两点关于坐标原点O对称,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656972781ee6edb9ffa86a65b408bc74.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
,
分别为椭圆
的左右焦点,P为椭圆上一点,满足
轴,
,且椭圆上的点到左焦点
的距离的最大值为3.
(1)求椭圆C的方程;
(2)若过点
的直线l交椭圆C于A,B两点,
(其中O为坐标原点),与直线l平行且与椭圆C相切的两条直线分别为
,
,若
与
之间的距离为
,求直线l的方程.
![](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/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0aa9a6be97b5f275d55697fd3cd0a442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9772ee7b590351b96033dcffd585da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(1)求椭圆C的方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/687b438a3c1d831333e3e09349548cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ebac01772fba6b0eb3fbf14472a7f11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30b12efb03327f461e868b2ea433f9b0.png)
您最近一年使用:0次
名校
3 . 在平面直角坐标系
中,已知椭圆
:
的离心率为
,焦距为2,
为直线
上的一点.
(1)求椭圆
的方程;
(2)若
为椭圆的左顶点,直线
与椭圆交于点
,且
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6f7ef5c8787553cb8e03fa10d9a093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11d28bb5337e1b4202baa6b3b1388a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
的离心率为
,点
,
是椭圆C的左右焦点,点P是C上任意一点,若
面积的最大值为
.
(1)求椭圆C的标准方程;
(2)直线
与椭圆C在第一象限的交点为M,直线
与椭圆C交于A,B两点,连接
,
,与x轴分别交于P,Q两点,求证:
始终为等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.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/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆C的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c84e54fca7052108b4f2a299882a3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e48df3cbddcbcd172de5f1895ee0407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a9dabb53dc826019fc8b6ae6d940c5.png)
您最近一年使用:0次
2020-12-30更新
|
284次组卷
|
9卷引用:安徽省滁州市第二中学、定远县第三中学2022-2023学年高二上学期12月联考数学试题
安徽省滁州市第二中学、定远县第三中学2022-2023学年高二上学期12月联考数学试题安徽省安庆市宿松县程集中学2020-2021学年高二上学期期中数学试题河南省新乡市原阳县第一高级中学2021-2022学年高二上学期12月数学(文)试题甘肃省天水市甘谷县第一中学2019-2020学年高二上学期期末数学(理)试题人教B版(2019) 选择性必修第一册 过关斩将 第二章 平面解析几何 本章达标检测江西省新余市2020-2021学年高二下学期期末数学(理)试题(已下线)专题六 椭圆-2021-2022学年高二数学同步单元AB卷(人教A版2019选择性必修第一册)吉林省长春市第二实验中学2022-2023学年高二上学期期中数学试题云南省临沧市民族中学-2022-2023学年高二上学期期末数学试题
名校
解题方法
5 . 已知椭圆
:
的上顶点为
,右顶点为
,直线
与圆
相切于点
.
![](https://img.xkw.com/dksih/QBM/2020/12/18/2616956198297600/2618199995105280/STEM/2601e5873dc44ffe9ebdb167dea6edb0.png?resizew=259)
(1)求椭圆
的标准方程;
(2)若椭圆
上的三点
,斜率为负数的直线
与
轴交于
,若原点
是
的重心,且
与
的面积之比为
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2845cff59808d0945644a6c867e40740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e915cea8e74183c16591e3b2e06f7483.png)
![](https://img.xkw.com/dksih/QBM/2020/12/18/2616956198297600/2618199995105280/STEM/2601e5873dc44ffe9ebdb167dea6edb0.png?resizew=259)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f7ad41b36674fd6e90176ee24cdefbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8f4acffd2f9d6ab583fc2f732486c96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
名校
6 . 已知椭圆
的左、右焦点为
,离心率为
,且点
在椭圆上.
(1)求椭圆
的标准方程;
(2)若直线
椭圆
相交于
两点,求
为坐标原点)的面积
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.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/8aa3227349546a6cc56ab8a3c3ee3057.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/800b2c1a392d23af206ca8e2451f27be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
您最近一年使用:0次
2020-12-16更新
|
81次组卷
|
3卷引用:安徽省蚌埠市固镇二中2020-2021学年高二上学期12月月考理科数学试题
名校
解题方法
7 . 已知椭圆
的离心率为
,点
在椭圆上.
(1)求椭圆的方程;
(2)O是坐标原点,过椭圆的右焦点
直线
交椭圆于P,Q两点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
(1)求椭圆的方程;
(2)O是坐标原点,过椭圆的右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
您最近一年使用:0次
2020-12-03更新
|
1267次组卷
|
4卷引用:安徽省安庆市怀宁县新安中学2023-2024学年高二上学期11月月考数学试卷
安徽省安庆市怀宁县新安中学2023-2024学年高二上学期11月月考数学试卷广东省深圳市高级中学2020-2021学年高二上学期期中数学试题云南省砚山县第三高级中学2020-2021学年高二下学期期中考试数学试题(已下线)文科数学-学科网2021年高三1月大联考考后强化卷(新课标Ⅲ卷)?
名校
8 . 已知椭圆的左焦点为
,右顶点为
,设点
的坐标是
.
(1)求该椭圆的标准方程;
(2)若
是椭圆上的动点,求线段
的中点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46542271c7fa06f33b222424838c9684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269a51e0f77f63bae2df3dc8b1d4f455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac7c28099bfbb7dc2a45ad166eace05.png)
(1)求该椭圆的标准方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2020-11-28更新
|
1032次组卷
|
3卷引用:安徽省宣城市第三中学2020-2021学年高二上学期第三次月考数学(文)试题
9 . 已知椭圆
经过点
,且短轴长为2.
(1)求椭圆
的标准方程;
(2)若直线
与椭圆
交于
,
两点,且
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63bb539d82e21ff9052cccaa62ef849.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/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/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1f0417d8269f01d8e0bc1a8756e2ac.png)
您最近一年使用:0次
2020-11-22更新
|
525次组卷
|
3卷引用:安徽省六安市舒城中学2020-2021学年高二上学期第三次月考数学(文)试题
名校
解题方法
10 . 已知曲线
表示焦点在
轴上的椭圆.
(1)求
的取值范围;
(2)设
,过点
的直线
交椭圆于不同的两点
,
(
在
,
之间),且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f56a9ed5acdb9138c3a013c39911187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c10f14aae6fb21e047ecb39cdf40c0.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)
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7卷引用:安徽省蚌埠第三中学2020-2021学年高二上学期11月教学质量检测数学(理)试题
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