解题方法
1 . 已知椭圆
的左、右焦点分别为
、
,离心率
,
为椭圆
上的任意一点(不含长轴端点),且△
面积的最大值为
.
(1)求椭圆
的方程;
(2)设直线
R
交椭圆
于
、
两点,试探究:点
与以线段
为直径的圆的位置关系,并证明你的结论.
![](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/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5a8e1bc9748e5519dcd9981b7eb251.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07dcf40255181789312219de680a2f2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3492b97c5b85da3965f86239ede4e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
2 . 已知中心在原点O,焦点在x轴上,离心率为
的椭圆过点(
,
).
(Ⅰ)求椭圆的方程;
(Ⅱ)设不过原点O的直线l与该椭圆交于P,Q两点,满足直线OP,PQ,OQ的斜率依次成等比数列,求直线l的斜率.
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554614112256/1572554619994112/STEM/f2c9277e7416459aa347a597f2ec31db.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554614112256/1572554619994112/STEM/fd1ba0b47962438082a2d4e7bdd4a372.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554614112256/1572554619994112/STEM/d83d1b8b81d04b9099ea60abc967ec63.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)设不过原点O的直线l与该椭圆交于P,Q两点,满足直线OP,PQ,OQ的斜率依次成等比数列,求直线l的斜率.
您最近一年使用:0次
解题方法
3 . 已知直线过点
,且倾斜角为
,椭圆C:
的左焦点为
,离心率
.
(1)求直线l和椭圆C的方程;
(2)求证:直线l和椭圆C有两个交点;
(3)设直线l和椭圆C的两个交点为A,B,求证:以线段AB为直径的圆经过点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/843e3f8c3314d51a322c6122a13745c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27b3dff6cad2ca1f42dde078d4a06f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/234e7679481ec0d01c915b7fbb71891d.png)
(1)求直线l和椭圆C的方程;
(2)求证:直线l和椭圆C有两个交点;
(3)设直线l和椭圆C的两个交点为A,B,求证:以线段AB为直径的圆经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
您最近一年使用:0次
11-12高二下·河北衡水·阶段练习
4 . 椭圆
的一个顶点为
,离心率
.
(1)求椭圆方程;
(2)若直线
与椭圆交于不同的两点
.若满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f94c4f6b762fddb0e313050ef6932eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700f1ef8d7b90141e0150d6440427a43.png)
(1)求椭圆方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a81bc772f0f6bffbd80778f5588549c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b485b62d004d52fb31d6ed99ccb7669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2016-12-04更新
|
381次组卷
|
4卷引用:2011-2012学年河北省衡水中学高二下学期一调考试文科数学
(已下线)2011-2012学年河北省衡水中学高二下学期一调考试文科数学2015-2016学年河南省南阳市一中高二下开学考文科数学卷青海省西宁市大通回族土族自治县2021-2022学年高二上学期期末考试数学(理)试题湖南省岳阳市华容县2023-2024学年高二上学期期末监测数学试题
名校
解题方法
5 . 椭圆
:
内有一点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797c488729678e74e0825c2e92b544b4.png)
(1)求经过
并且以
为中点的弦所在直线方程;
(2)如果直线
:
与椭圆
相交于
、
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797c488729678e74e0825c2e92b544b4.png)
(1)求经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)如果直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ffdc52431c6a72917f331ad3b3355d.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19ff643593c5921a31b408986f11a60d.png)
您最近一年使用:0次
2016-12-04更新
|
290次组卷
|
4卷引用:2015-2016学年四川省攀枝花十五中高二上学期期中理科数学试卷
解题方法
6 . 已知两点
及
,点
在以
、
为焦点的椭圆
上,且
、
、
构成等差数列.
(1)求椭圆
的方程;
(2)如图,动直线
与椭圆
有且仅有一个公共点,点
是直线
上的两点,且
.求四边形
面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4ef569668e797b1e94257fd5f4384dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cdfc6a59392d1ac3cd89ddc0308864c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96fa27f8db6167d4802a510371077bb5.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ae50196f4862bbfdfa8bbfd32ef02be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e06adbd8fa4e92be6ae5d3bfb9b3f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/8/07b005c6-42a3-4f43-b3ab-808ed440b296.png?resizew=205)
您最近一年使用:0次
解题方法
7 . 如图,椭圆
的右焦点为
,右顶点、上顶点分别为点
且
.
![](https://img.xkw.com/dksih/QBM/2016/3/1/1572507975041024/1572507981283328/STEM/b59589581b1d449f9a20ab60e9753f27.png?resizew=196)
(1)求椭圆的离心率;
(2)若点
在椭圆
内部,过点
的直线
交椭圆
于
两点,
为线段
的中点,且
.求直线
的方程及椭圆
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ebe2973467a921e861a12471ec8496e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/1/1572507975041024/1572507981283328/STEM/b59589581b1d449f9a20ab60e9753f27.png?resizew=196)
(1)求椭圆的离心率;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fcb05e9c3ff28374caa42318fc81537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2010·湖南长沙·一模
名校
解题方法
8 . 已知中心在原点,焦点在
轴上的椭圆C的离心率为
,且经过点
.
(1)求椭圆C的方程;
(2)是否存在过点
的直线
与椭圆
相交于不同的两点
,
,满足
?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e67baac84cf5c95d06d50c36cab7c68.png)
(1)求椭圆C的方程;
(2)是否存在过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/c53c2dd84330bf2f26bc934159b7d04b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
2016-12-04更新
|
712次组卷
|
18卷引用:湖南省长沙市一中2010届高三第一次模拟考试文科数学试题
(已下线)湖南省长沙市一中2010届高三第一次模拟考试文科数学试题(已下线)2010年北京市朝阳区高三下学期一模数学(文)测试(已下线)2011届甘肃省武威六中高三第一次诊断考试理科数学卷(已下线)2012届山东省高考模拟冲刺卷文科数学(三)(已下线)2011-2012学年湖南省望城一中高二下学期期中理科数学试卷(已下线)2012届山东省鄄城一中高三下学期模拟冲刺考试文科数学试卷2015届吉林省实验中学高三年级第二次模拟考试理科数学试卷2014-2015学年山东省济南第一中学高二下学期期中考试文科数学试卷2015-2016学年江苏省启东中学高二上学期期末考试数学试卷2016届广东省华南师大附中四校高三上期末联考文科数学试卷2016届天津市河东区高考一模考试理科数学试卷陕西省黄陵中学2017届高三(重点班)下学期高考前模拟(一)数学(文)试题福建省永春一中、培元、季延、石光中学四校2018届高三上学期第二次联考数学(文)试题【全国市级联考】吉林省延边州2018届高三高考仿真模拟数学(文科)试题【校级联考】安徽省芜湖市四校2018-2019学年高二上学期期末联考数学(文)试题【全国百强校】天津市耀华中学2017-2018学年高二上学期期末考试数学(文)试题2019年河南省郑州市高二数学选拔赛天津市西青区2022-2023学年高二上学期期末数学试题
解题方法
9 . 已知椭圆
的离心率为
,椭圆C的长轴长为4.
(1)求椭圆C的方程;
(2)已知直线
与椭圆C交于A,B两点,是否存在实数k使得以线段AB 为直径的圆恰好经过坐标原点O?若存在,求出k的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的方程;
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff3ca9d16ea262007adb2d58467d78d.png)
您最近一年使用:0次
解题方法
10 . 经过椭圆
的左焦点
作直线
,与椭圆
交于
两点,且
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd26c5998b82ead72b73adf2cc92f9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次