名校
解题方法
1 . 已知椭圆
的短轴长为2,离心率为
.
(1)求
的方程;
(2)直线
与
交于
两点,与
轴交于点
,与
轴交于点
,且
.
(ⅰ)当
时,求
的值;
(ⅱ)当
时,求点
到
的距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154ff2f73c51da6abb81b4bf8ed0d368.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77befd29297b4311a188381b6de618e.png)
(ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d544f5a3293299a221d37729f3d637c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2183add7abab73f3c3b79ccf4349ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2838530a3a6a8e814e4c17ce0f042a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2024-04-19更新
|
1213次组卷
|
4卷引用:上海市复旦中学2023-2024学年高二下学期5月月考数学试卷
解题方法
2 . 已知椭圆
的离心率为
,且椭圆C过点
,点F为椭圆C的左焦点.垂直于x轴的动直线l与椭圆C相交于不同两点P,Q,直线PF与椭圆C的另一个交点为M(异于点Q),直线QM恒过定点B,则点B的坐标为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
您最近一年使用:0次
3 . 已知椭圆
过点
,离心率
.
(1)求椭圆C的方程;
(2)设过点A的直线l交椭圆C于另一点B,若△OAB的面积为2,其中O为坐标原点,求直线l的方程;
(3)设过点
的直线l交椭圆C于点M,N,直线MA,NA分别交直线
于点P,Q.求证:线段PQ的中点为定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfaba0309c471a4246ca3254a3cdaf17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
(1)求椭圆C的方程;
(2)设过点A的直线l交椭圆C于另一点B,若△OAB的面积为2,其中O为坐标原点,求直线l的方程;
(3)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17905988258f795b4eb172b19ad2d7fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
您最近一年使用:0次
2023-10-26更新
|
1203次组卷
|
5卷引用:上海市浦东复旦附中分校2023-2024学年高三下学期3月月考数学试题
22-23高二下·上海·期末
名校
解题方法
4 . 已知椭圆C:
,四点
中恰有三点在椭圆C上.
(1)求椭圆C的方程;
(2)设直线l不经过P2点且与C相交于A,B两点,若直线
与直线
的斜率的和为
,证明:l过定点.
(3)如图,抛物线M:
的焦点是F,过动点
的直线
与椭圆C交于P,Q两点,与抛物线M交于
两点,且G是线段PQ的中点,是否存在过点F的直线
交抛物线M于T,D两点,且满足
,若存在,求直线
的斜率k的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56e892a94fe231316ebcdee520d5e573.png)
(1)求椭圆C的方程;
(2)设直线l不经过P2点且与C相交于A,B两点,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3de68627f7f3d7f81b61bf743f311ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9019a986b3ba5fcefced99c566b5329c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
(3)如图,抛物线M:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3827d1a92071d236268de3bd57437904.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8454989732716850cb57ca15f8ef596.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7e9685dd022022325181e835761848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2023-08-16更新
|
1086次组卷
|
5卷引用:上海市吴淞中学2023-2024学年高二下学期第二次调研(5月)数学试卷
上海市吴淞中学2023-2024学年高二下学期第二次调研(5月)数学试卷(已下线)上海高二下学期期末真题精选(压轴60题35个考点专练)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)上海市上海外国语大学附属外国语学校松江云间中学、进才中学、交大附中嘉定分校、复旦附中青浦分校2023-2024学年高二上学期四校联考数学试卷江苏省常州市第一中学2023-2024学年高二上学期期末质量调研数学试题(已下线)考点19 解析几何中的探索性问题 2024届高考数学考点总动员【练】
5 . 如图,在平面直角坐标系
中,椭圆
过点
,且离心率为
,设椭圆
的右顶点为
,点
,
是椭圆
上异于
,
的两个动点,记直线
,
的斜率分别为
,
,且
.
(1)求证:直线
过定点
;
(2)设直线
,
相交于点
,记
,
的面积分别为
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](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/784f80ff0ce3f794b179f967cb31420f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/6/ac178938-15e0-4b62-a577-717c83e45f16.png?resizew=173)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8059a935a2325a9e7abbcbf56aa167f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b17f20c25bb16153b5f2d25062ed7a7.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/235f0a6fb218d28383e6f27f2df1f50f.png)
您最近一年使用:0次
2023-07-27更新
|
1056次组卷
|
4卷引用:第2章 圆锥曲线(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)
(已下线)第2章 圆锥曲线(压轴题专练)-2023-2024学年高二数学单元速记·巧练(沪教版2020选择性必修第一册)广东省惠州市博罗县2023-2024学年高二上学期期末数学试题广东省惠州市2023-2024学年高二上学期1月期末数学试题浙江省台州市名校联盟2022-2023学年高二上学期11月五科联赛数学试题
6 . 设椭圆
的左顶点为
,上顶点为
.已知椭圆的离心率为
.
(1)求椭圆的方程;
(2)设
为椭圆
上异于点
的两动点,若直线
的斜率之积为
.
①证明直线
恒过定点,并求出该点坐标;
②求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/0968f5bdc35f873a342db481e87e09df.png)
(1)求椭圆的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55f4956a366840d6f73ad8eb07c6229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
①证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
2022-05-03更新
|
1257次组卷
|
6卷引用:上海市杨浦高级中学2023-2024学年高二下学期3月月考数学试卷
上海市杨浦高级中学2023-2024学年高二下学期3月月考数学试卷(已下线)上海市华东师范大学第二附属中学2023届高三模拟冲刺(3)数学试题湖南省衡阳市2022届高三下学期二模数学试题(已下线)2022年高考考前20天终极冲刺攻略(三)【理科数学】 (5月30日)(已下线)考点20 椭圆-2-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)湖南省新高考教学教研联盟2023届高三下学期4月第二次联考数学试题变式题17-22