名校
解题方法
1 . 已知椭圆
的离心率是
,一个顶点是
.
(1)求椭圆C的标准方程
(2)设P,Q是椭圆上异于顶点的任意两点,且
,求证:直线PQ恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbfebcce07c150a6e1daea1d5dfb35ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cba284d675a3028d7a8d54f1f8ae70.png)
(1)求椭圆C的标准方程
(2)设P,Q是椭圆上异于顶点的任意两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e4cb1a0ea1b684e80129f2415ef2e4.png)
您最近一年使用:0次
2021-10-08更新
|
1864次组卷
|
5卷引用:天津市静海区第六中学2021-2022学年高三上学期第一次月考数学试题
名校
解题方法
2 . 已知椭圆
过点
,且半焦距
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/dbba734e-c389-4a2a-91e4-187c3f1d1139.png?resizew=194)
(1)求椭圆C的标准方程;
(2)如图,已知
,过点
的直线l与椭圆相交于
两点,直线
与x轴分别相交于
两点,试问
是否为定值?如果是,求出这个定值;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3089b2e802564929156e131e7c492681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bd5b9bbd3d22bd2cef53dd4b9691257.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/15/dbba734e-c389-4a2a-91e4-187c3f1d1139.png?resizew=194)
(1)求椭圆C的标准方程;
(2)如图,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6a4cd75394423197fb6942d6debcf7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/064008012971e87936e31b808b16e0ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd8cb171425253834dfd7fa1a9da9ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e1842061a8dcef404c5b81ad711d55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be982149db5c34428e2c7d6fe277f176.png)
您最近一年使用:0次
2021-09-11更新
|
819次组卷
|
6卷引用:天津市第一中学2021-2022学年高二上学期期中数学试题
天津市第一中学2021-2022学年高二上学期期中数学试题西藏拉萨中学2020-2021学年高二下学期第五次月考数学(文)试题西藏拉萨中学2020-2021学年高二下学期第五次月考数学(理)试题吉林省白山市抚松县第一中学2021-2022学年高二上学期第三次月考数学试题黑龙江省哈尔滨市德强学校2021-2022学年高二上学期期中考试数学试题(已下线)专题44 盘点圆锥曲线中的定值问题——备战2022年高考数学二轮复习常考点专题突破
名校
解题方法
3 . 已知椭圆
过点
,其右顶点为
,下顶点为
,且
,若作与
轴不重合且不平行的直线
交椭圆
于
两点,直线
分别与
轴交于
两点.
(I)求椭圆
的方程:
(2)当点
的横坐标的乘积是
时,试探究直线
是否过定点?若过定点,请求出定点;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.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/fd3287fe7ab879d8756115a5d4d22d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa154ac33703b5c836047b2143697c6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(I)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-05-31更新
|
1143次组卷
|
7卷引用:天津市北辰区2021届高三下学期高考模拟考试数学试题
天津市北辰区2021届高三下学期高考模拟考试数学试题2021届新高考同一套题信息原创卷(五)(已下线)文科数学-学科网2021年高三5月大联考考后强化卷(新课标Ⅱ卷)(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)(已下线)2022年全国高考乙卷数学(理)试题变式题13-16题(已下线)2022年全国高考乙卷数学(理)试题变式题17-20题江苏省盐城第一中学2023-2024学年高二上学期第二次学情调研考试(期中)数学试卷
名校
解题方法
4 . 已知点
为椭圆
的焦点,且点
在椭圆上.
(1)求椭圆的方程;
(2)已知直线
与椭圆交于
、
两点,且坐标原点
到直线
的距离为
,
的大小是否为定值?若是,求出该定值,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6661282d8437f58dd4434cac203585f7.png)
(1)求椭圆的方程;
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c29c3bfdae2d4fbe8a8deaa572a2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
您最近一年使用:0次
2021-05-01更新
|
1720次组卷
|
5卷引用:天津市十二区县重点学校2021届高三下学期毕业班联考(二)数学试题
5 . 已知椭圆
的左、右焦点分别为
,
,右顶点为点
,点
的坐标为
,延长线段
交椭圆于点
,
轴.
(1)求椭圆的离心率;
(2)设抛物线
的焦点为
,
为抛物线上一点,
,直线
交椭圆于
,
两点,若
,求椭圆的标准方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c8f7dc8509f4194eae9709b9d67ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b85b7fea69161055ff26e549088c606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9a7ab181883910f06f7fbecc6ea25d.png)
(1)求椭圆的离心率;
(2)设抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eba2e14dd3d24954936142d3e411bf43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1a9a286eff1c51566e9f842c004cd27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.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/5105c77358b3f7c88efe1857f8084cf3.png)
您最近一年使用:0次
名校
解题方法
6 . 已知椭圆
过点
,且离心率为
.
(1)求椭圆
的标准方程;
(2)点
是椭圆
与
轴正半轴的交点,点
,
在椭圆
上且不同于点
,若直线
、
的斜率分别是
、
,且
,试判断直线
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/57ef404abca1f78da130a38849f58559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c97d3cf0f550e8f9e1da0f645201b731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a6f62ec9c0e58b3f1c363158269b14d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ff131c92aa9e10f696d374216cdcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2ef1ccb69abec8bfaaee4ed3f140dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
2020-12-02更新
|
1929次组卷
|
6卷引用:天津市静海区第一中学2020-2021学年高三上学期期末数学试题
天津市静海区第一中学2020-2021学年高三上学期期末数学试题天津市宝坻区第一中学2021届高三下学期二模数学试题(已下线)黄金卷02-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)天津市市区重点中学2023届高三下学期一模数学试题河南省豫南九校2020-2021学年第一学期高二第三次联考(11月)理数试题豫南九校2022-2023学年高二上学期第三次联考数(理)试题
名校
7 . 已知椭圆C:
1(a>b>0)的离心率e
,且点P(
,1)在椭圆C上.
(1)求椭圆C的方程;
(2)若椭圆C的左焦点为F,右顶点为A,点M(s,t)(t>0)是椭圆C上的动点,直线AM与y轴交于点D,点E是y轴上一点,EF⊥DF,EA与椭圆C交于点G,若△AMG的面积为2
,求直线AM的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22ecb9b0a87ab5098571bdf80441231.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b945ef245f4e808511e0069fa05ed6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
(1)求椭圆C的方程;
(2)若椭圆C的左焦点为F,右顶点为A,点M(s,t)(t>0)是椭圆C上的动点,直线AM与y轴交于点D,点E是y轴上一点,EF⊥DF,EA与椭圆C交于点G,若△AMG的面积为2
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e051d14fd6a787387995331f5e6d026.png)
您最近一年使用:0次
2020-03-15更新
|
787次组卷
|
4卷引用:天津市静海区第六中学2021-2022学年高三上学期第二次月考数学试题