名校
解题方法
1 . 已知椭圆C:
(
)的离心率为
,且点
在椭圆上.
(1)求椭圆C的方程;
(2)若点
,点
在椭圆C上,
轴,垂足为M,直线
交
轴于点N,线段
的中点为坐标原点,试判断直线
与椭圆C的位置关系,并给出证明.
![](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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
(1)求椭圆C的方程;
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32366143230ca122894a4bada7c7b96d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50e68223fc39b88b8132d81b019e7f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d1668b8e80d00f85e5836f6ae9dd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e15d7734d2ef9eb7baa6654149085d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c4c865445dda4a59b6d5cb18fd74404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
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5卷引用:辽宁省2023-2024学年高二下学期期初教学质量检测数学试题
辽宁省2023-2024学年高二下学期期初教学质量检测数学试题山东省枣庄市薛城实验中学等校2023-2024学年高二上学期12月大联考数学试题河南省周口市西华县第一高级中学等校2023-2024学年高二上学期一月联考数学试题(已下线)第3章:圆锥曲线与方程章末重点题型复习-【题型分类归纳】2023-2024学年高二数学同步讲与练(苏教版2019选择性必修第一册)山东省临沂市多校2023-2024学年高二上学期12月大联考数学试题
名校
解题方法
2 . 在平面直角坐标系
中,
、
、
,动点
满足
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c59f0e35b7ae5206e45878934482b8.png)
![](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/f595683f69d5d6b5ca76408b0ff6ff17.png)
A.![]() |
B.![]() |
C.有且仅有![]() ![]() ![]() ![]() |
D.有且仅有![]() ![]() ![]() ![]() |
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5卷引用:辽宁省大连市第一中学2021-2022学年高三上学期期中数学试题
3 . 在平面直角坐标系中,已知
为坐标原点,点
为直线
:
与椭圆
:
的一个交点,且
,
.
(1)证明:直线
与椭圆
相切;
(2)已知直线
与椭圆
:
交于
,
两点,且点
为
的中点.
(i)证明:椭圆
的离心率为定值;
(ii)记
的面积为
,若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152236216f8d1cb39b261108e8fc8b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a980c55b1f6cee5807fcea8bf613df33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b1c78d909cf94234a6c2a8fe28c057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db60cf63a8024ff5b47b1e47090a817c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9d71d4a47bd6f425c2260fc142361c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(i)证明:椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48057a284f5314eabea64989e32819aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159013e30c1e03bbc0c0d2a0df0dd3a1.png)
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5卷引用:辽宁省大连市第八中学2022-2023学年高三上学期12月月考数学试题
4 . 如图所示,已知
、
分别是椭圆
:
的左、右顶点,点
是椭圆
上位于
轴上方的动点,点
与点
关于
轴对称,直线
,
与
轴分别交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/1c87dbb5-355a-4ef9-9c82-d56bfdd019e1.png?resizew=145)
(1)求线段
的长度的最小值;
(2)当线段
的长度最小时,在椭圆
上是否存在这样的点
,使得
的面积为1?若存在,确定点
的个数,若不存在,请说明理由.
![](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/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.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/150a135bbd528daf3f19a58a621a57c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77e9c89b7275b0c1a9af5c9a72e5968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95ae884bbe622d0a732ae341e738fd87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/1c87dbb5-355a-4ef9-9c82-d56bfdd019e1.png?resizew=145)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(2)当线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3ee2823f1b9488e932fd732fb49ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
名校
5 . 在平面直角坐标系中,若
,
,且
.
(Ⅰ)求动点
的轨迹
的方程;
(Ⅱ)设(Ⅰ)中曲线
的左、右顶点分别为
、
,过点
的直线
与曲线
交于两点
,
(不与
,
重合).若直线
与直线
相交于点
,试判断点
,
,
是否共线,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d908933bae3fc4d3525f1a6415abec25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dae0cdb2b8fa89d3bc8efa73501ff31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466b8d54c992f259df34b5d6de1c2760.png)
(Ⅰ)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ff7e0ef1f622120cc1b18e9d3e80ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)设(Ⅰ)中曲线
![](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/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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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4卷引用:2020届辽宁省大连市第二十四中学高三4月模拟考试数学(理)试题
名校
6 . 设D是圆O:x2+y2=16上的任意一点,m是过点D且与x轴垂直的直线,E是直线m与x轴的交点,点Q在直线m上,且满足2|EQ|
|ED|.当点D在圆O上运动时,记点Q的轨迹为曲线C.
(1)求曲线C的方程.
(2)已知点P(2,3),过F(2,0)的直线l交曲线C于A,B两点,交直线x=8于点M.判定直线PA,PM,PB的斜率是否依次构成等差数列?并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e589def3e7fe21b601bc6d5144073202.png)
(1)求曲线C的方程.
(2)已知点P(2,3),过F(2,0)的直线l交曲线C于A,B两点,交直线x=8于点M.判定直线PA,PM,PB的斜率是否依次构成等差数列?并说明理由.
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10卷引用:【市级联考】辽宁省辽阳市2019届高三下学期一模数学(理科)试题
【市级联考】辽宁省辽阳市2019届高三下学期一模数学(理科)试题【市级联考】广西南宁市2019届高三毕业班第一次适应性测试数学(理科)试题【市级联考】广西南宁市2019届高三毕业班第一次适应性测试数学(文)试题【市级联考】湖南省湘潭市2019届高三下学期第二次模拟考试数学(文)试题【市级联考】湖南省湘潭市2019届高三下学期第二次模拟考试数学(理)试题【市级联考】湖南省长沙市2019届高三下学期第二次模拟考试数学(理)试题【市级联考】湖南省长沙市2019届高三下学期第二次模拟考试数学(文)试题2020年普通高等学校招生全国统一考试理科数学样卷(五)2020年普通高等学校招生全国统一考试 文科数学样卷(五)重庆市第十一中学2020届高三下学期6月月考数学(理)试题
7 . 已知椭圆
的短轴长为2,离心率为
,直线
与椭圆
交于
两点,且线段
的垂直平分线通过点
.
(1)求椭圆
的标准方程;
(2)当
(
为坐标原点)面积取最大值时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749b71e49c95b9212a600e837261ccdd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2017-05-02更新
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5卷引用:辽宁省大连市第二十四中学2017-2018学年高二上学期期中考试数学试题