名校
1 . 已知椭圆C的中心在原点,焦点在x轴上,椭圆长轴两个端点间的距离与两个焦点之间的距离的差为
,且椭圆的离心率为
.
(1)求椭圆C的方程;
(2)过点
作直线
交
于
、
两点,且
求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a82f7cb09e7613100558a963f259f8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.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/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/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
2 . 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)
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3 . 已知椭圆
的两个焦点坐标分别是
,
,并且经过点
,
,
是椭圆
上的不同两点,且以
为直径的圆经过原点
.
(1)求椭圆
的标准方程;
(2)是否存在圆心在原点的圆恒与直线
相切,若存在,求出该圆的方程,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b36a0866ec5fbb94e6cf4d61579e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb374fd349306abf2f784b6a28d93a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在圆心在原点的圆恒与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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4 . 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)
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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
5 . 已知P是圆C:
上的动点,点
,线段
的垂直平分线交
于点Q.
(1)求Q的轨迹
的方程;
(2)点E在x轴上,过点C的直线l交
于B,D两点,直线
,
分别交y轴于M,N两点,且
,求E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afc954e87bd737ec051d5c94837c8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(1)求Q的轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)点E在x轴上,过点C的直线l交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21ce7a35adb62932f10a65cb0a70e77.png)
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2020-03-15更新
|
205次组卷
|
2卷引用:安徽省六安市霍邱县第一中学2019-2020学年高二下学期开学考试文科数学试题
名校
解题方法
6 . 已知椭圆C:
(
)的两焦点与短轴两端点围成面积为12的正方形.
(1)求椭圆C的标准方程;
(2)我们称圆心在椭圆上运动,半径为
的圆是椭圆的“卫星圆”.过原点O作椭圆C的“卫星圆”的两条切线,分别交椭圆C于A、B两点,若直线
、
的斜率为
、
,当
时,求此时“卫星圆”的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
(1)求椭圆C的标准方程;
(2)我们称圆心在椭圆上运动,半径为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc8b26fb79c1f4d36130c41b18c0f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.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/53232bf832d02c32acd9983ba974a98b.png)
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2020-02-27更新
|
710次组卷
|
5卷引用:安徽省六安市舒城中学2022届高三下学期仿真模拟(二)文科数学试题
真题
名校
7 . 已知椭圆的中心为原点
,长轴在
轴上,上顶点为
,左、右焦点分别为
,线段
的中点分别为
,且△
是面积为4的直角三角形.
(Ⅰ)求该椭圆的离心率和标准方程;
(Ⅱ)过
作直线
交椭圆于
,
,求直线
的方程.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/787e048d8e5402c223678e39d11b121c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d468be20b4d43f5de75416de20e8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1acf532db82b97a574517f5a2fae5f58.png)
(Ⅰ)求该椭圆的离心率和标准方程;
(Ⅱ)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://img.xkw.com/dksih/QBM/2012/6/20/1570893694107648/1570893699530752/STEM/f5310a42feb24650b04da06124c3d7de.png?resizew=9)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd6112cb725b49eed2d7d63054e95c6.png)
![](https://img.xkw.com/dksih/QBM/2012/6/20/1570893694107648/1570893699530752/STEM/f5310a42feb24650b04da06124c3d7de.png?resizew=9)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/3/41cea6a9-2c2f-4d70-8dfd-fd2549e3eef8.png?resizew=282)
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2019-01-30更新
|
3717次组卷
|
17卷引用:安徽省六安市第一中学2017-2018学年高二上学期期末考试数学(文)试题
安徽省六安市第一中学2017-2018学年高二上学期期末考试数学(文)试题2012年全国普通高等学校招生统一考试理科数学(重庆卷)2012年全国普通高等学校招生统一考试文科数学(重庆卷)(已下线)2013届山东省高三高考压轴理科数学试卷(已下线)2014届人教版高考数学文科二轮专题复习提分训练22练习卷2016届广东省广州实验中学高三上学期第二次段文科考数学试卷2017届安徽屯溪一中高三上学期月考二数学(理)试卷2017-2018学年高中数学(苏教版)选修1-1 阶段质量检测(二)圆锥曲线与方程2017-2018学年高中数学(苏教版)选修1-1 阶段质量检测(二) 圆锥曲线与方程浙江省余姚中学2017-2018学年高二上学期第一次质量检测试题数学安徽省合肥庐阳高级中学2017-2018学年高二(上)期末考试理科数学试题黑龙江省海林市朝鲜族中学人教版高中数学选修2-1同步练习:滚动习题(二)[范围2.1~2.2](已下线)专题9.5 椭圆(讲)【文】-《2020年高考一轮复习讲练测》(已下线)卷05-备战2020年新高考数学自学检测黄金10卷-《2020年新高考政策解读与配套资源》甘肃省民乐县第一中学2020-2021学年高三上学期1月诊断考试数学(理)试题(已下线)专题9-3 圆锥曲线压轴大题五个方程框架十种题型-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)四川省遂宁市射洪中学2021-2022学年高二下学期第一次月考数学理试题
8 . 已知两圆
,
的圆心分别为c1,c2,,P为一个动点,且
.
(1)求动点P的轨迹方程;
(2)是否存在过点A(2,0)的直线l与轨迹M交于不同的两点C,D,使得C1C=C1D?若存在,求出直线l的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ea4d94666f2014ce8bc1b1f3e915eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329edd36a2ed82f4676361183fa17b3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98ce83272570a6b62bb75fb08c15a2b.png)
(1)求动点P的轨迹方程;
(2)是否存在过点A(2,0)的直线l与轨迹M交于不同的两点C,D,使得C1C=C1D?若存在,求出直线l的方程;若不存在,请说明理由.
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