2024高三·全国·专题练习
解题方法
1 . 已知直线
与椭圆
交于A,B两点,O为坐标原点,以OA,OB为邻边作平行四边形
,点P恰好在C上.若线段AB的中点M在直线
上,则直线l的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24cf67ced733b660928422e52e0de44d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/984b2ab0e59484639252cc9ad49a2359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef00713e73b8357cc7900144f5505bc6.png)
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解题方法
2 . 斜率为
的直线与椭圆
交于
两点,点
是椭圆上的一点,且满足
,点
分别是
的重心,点
是
的外心.记直线
的斜率分别为
,若
,则椭圆
的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e89cf53f33a239867d760e5faaf7e9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12d517502935b84640f98d92c3fa3fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04e30d5827f2120d997997e4e31ba17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5175ca2366757a60f79e7f29f692c210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1811b47b622ae3ee3e7900adb70d5038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
3 . 已知椭圆C:
经过点
,O为坐标原点,若直线l与椭圆C交于A,B两点,线段AB的中点为M,直线l与直线OM的斜率乘积为
.
(1)求椭圆C的标准方程;
(2)若四边形OAPB为平行四边形,求四边形OAPB的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e764ba52bcb58b4ac2b30960c393ffc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
(1)求椭圆C的标准方程;
(2)若四边形OAPB为平行四边形,求四边形OAPB的面积.
您最近一年使用:0次
4 . 已知
,
是椭圆
:
的左右顶点,过点
且斜率不为零的直线与
交于
,
两点,
,
,
,
分别表示直线
,
,
,
的斜率,则下列结论中正确的是( )
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f449cadb49859b80c31ef1f68bfe81b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/1a6f62ec9c0e58b3f1c363158269b14d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/beda1e02b3e6e9e9448a5a4087ea838f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ff131c92aa9e10f696d374216cdcf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0721e40e4c6929a24c54d2035c4014a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
A.![]() | B.![]() |
C.![]() | D.直线![]() ![]() ![]() |
您最近一年使用:0次
2023-07-06更新
|
645次组卷
|
3卷引用:第20讲 椭圆的简单几何性质10种常见考法归类(3)
名校
解题方法
5 . 已知椭圆
:
,不与坐标轴垂直的直线
与椭圆
交于
,
两点,记线段
的中点为
.
(1)若
,求直线
的斜率;
(2)记
,探究:是否存在直线
,使得
,若存在,写出满足条件的直线
的一个方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.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/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdad2af7f067732dd6faedbffe618f20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16278a363571b1163e41c15b9a46ac75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d33091c6dcc5e3c822fa3242c9437aee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
6 . 已知斜率为k的直线l与椭圆
交于A,B两点,线段AB的中点为
.
(1)若
,
,求k的值;
(2)若线段AB的垂直平分线交y轴于点
,且
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2242ca20bd7ab3d41b128e10a4071521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26aefe11bb17e5d5d83f5f776d7b671a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
(2)若线段AB的垂直平分线交y轴于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30525b31bbd1741d7bd4ef4e91fe911b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96a1b4018d2a81acb44ca931d5f37ac5.png)
您最近一年使用:0次
名校
解题方法
7 . 已知椭圆
:
(
)上任意一点
到两个焦点的距离之和为
,且离心率为
.
(1)求椭圆
的标准方程;
(2)过点
作直线
交椭圆于
,
两点,点
为线段
的中点,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-02-19更新
|
1433次组卷
|
6卷引用:模块四 专题6 大题分类练(圆锥曲线的方程)基础夯实练(人教A)
(已下线)模块四 专题6 大题分类练(圆锥曲线的方程)基础夯实练(人教A)云南省昆明市云南师范大学附属中学2023-2024学年高二上学期第二次月考数学试题广西北海市2022-2023学年高二上学期期末教学质量检测数学试题海南省儋州市洋浦中学2022-2023学年高二下学期第一次月考数学试题(已下线)第3课时 课后 直线与椭圆的位置关系西藏山南市第二高级中学2023-2024学年高二上学期期末考试数学试题
8 . 已知椭圆
的一个焦点为
,过点
且与
轴不重合的直线
与椭圆
交于
两点.
(1)若线段
中点的横坐标为
,求直线
的方程;
(2)设直线
与直线
交于点
,点
满足
轴,
轴,试求直线
的斜率与直线
的斜率的比值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af74113f38fffeed8075e57d7f9d2533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
(1)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fda3ffc201060466fe11aa1c52f8f32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7152aea5d046953a8c931571be7c529.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff95970af540cc15b7de34dcb670f3c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34c8952185f4499952d68cfba1c1d890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
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解题方法
9 . 已知椭圆
.
(1)过椭圆的左焦点
引椭圆的割线,求截得的弦的中点
的轨迹方程;
(2)求斜率为2的平行弦的中点
的轨迹方程;
(3)求过点
且被
平分的弦所在直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
(1)过椭圆的左焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)求斜率为2的平行弦的中点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(3)求过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261337a9d4f2a39a3757b8c39ea5314b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
名校
解题方法
10 . 已知椭圆的方程为
,斜率为
的直线不经过原点
(
为坐标原点),且与椭圆相交于A,B两点,M为线段AB的中点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/376789bd6a2786afd2500908f4b3bf8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.直线AB与OM垂直 |
B.若点M的坐标为![]() ![]() |
C.若直线AB的方程为![]() ![]() |
D.若直线AB的方程为![]() ![]() |
您最近一年使用:0次
2022-08-28更新
|
565次组卷
|
19卷引用:专题16 平面解析几何(2)-2020年新高考新题型多项选择题专项训练
(已下线)专题16 平面解析几何(2)-2020年新高考新题型多项选择题专项训练(已下线)专题9.6 直线与圆锥曲线(精练)-2021年新高考数学一轮复习学与练(已下线)第5讲 椭圆-2021-2022学年高二数学多选题专项提升(人教A版2019选择性必修第一册)辽宁省六校协作体2019-2020学年高二上学期期中数学试题(已下线)第8篇——平面解析几何-新高考山东专题汇编辽宁省六校协作体2020-2021学年高二第一学期期中考试数学试题(已下线)【新教材精创】2.8+直线与圆锥曲线的位置关系(2)-A基础练-人教B版高中数学选择性必修第一册(已下线)卷13 选择性必修第一册高二上期中考试 总复习检测4(中)-2021-2022学年高二数学单元卷模拟(易中难)(2019人教A版选择性必修第一册+第二册)苏教版(2019) 选修第一册 必杀技 第三章 第3.1节综合训练沪教版(2020) 选修第一册 新课改一课一练 第2章 2.2.2.2椭圆的性质(2)2023版 北师大版(2019) 选修第一册 名师精选卷 第九单元 直线与圆锥曲线的位置关系辽宁省大连市大连育明高级中学2022-2023学年高二上学期期中数学试题重庆市永川北山中学校2023届高三下学期入学考试数学试题山东省菏泽市定陶区明德学校(山大附中实验学校)2023-2024学年高三上学期第一次阶段性考试数学试题2020届山东济宁市兖州区高三网络模拟考试数学试题黑龙江省鸡西市密山市第一中学2021-2022学年高二上学期期中数学试题(已下线)专题25 《圆锥曲线与方程》中的垂直问题-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 江苏省连云港市海头高级中学2022-2023学年高二上学期第二次月考数学试题(已下线)第三章 圆锥曲线与方程(单元重点综合测试)-2023-2024学年高二数学单元速记·巧练(苏教版2019选择性必修第一册)