名校
1 . 已知椭圆
过点
.
(Ⅰ)求椭圆
的方程,并求其离心率;
(Ⅱ)过点
作
轴的垂线
,设点
为第四象限内一点且在椭圆
上(点
不在直线
上),直线
关于
的对称直线
与椭圆交于另一点
.设
为坐标原点,判断直线
与直线
的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c228de3980a482944511f1138333970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/5963abe8f421bd99a2aaa94831a951e9.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
您最近一年使用:0次
2020-01-10更新
|
947次组卷
|
11卷引用:四川省成都市成都外国语学校2019-2020学年高三期中数学(理)试题
四川省成都市成都外国语学校2019-2020学年高三期中数学(理)试题四川省成都市成都外国语学校2019-2020学年高三上学期期中数学(文)试题【区级联考】北京市东城区2019届高三第一学期期末数学(理)试题【市级联考】湖北省十堰市2019届高三模拟试题文科数学试题(已下线)2020届高三12月第01期(考点08)(理科)-《新题速递·数学》天津市河北区2018-2019学年度高三年级总复习质量检测(二)数学(理)试题2020届黑龙江省实验中学高三下学期开学考试数学(文)试题(已下线)专题18 圆锥曲线(解答题)-2020年高考数学母题题源解密(天津专版)北京市石景山区2019-2020学年高三上学期期末考试数学试题四川省成都市棠湖中学2018-2019学年高二下学期期末考试数学(文)试题四川省内江市2021届高三第三次模拟数学(文)试题
名校
2 . 已知斜率等于
的直线
和椭圆
交于
两点,
为坐标原点.
(1)设点
是线段
的中点,当直线
经过椭圆的右焦点
时,求直线
的斜率;
(2)当
时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/271e595c257e4c0ade90a9bbbf0e6b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)设点
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8451374f8ef6fe1ac819068d8f3a5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
名校
3 . 已知椭圆
中心在原点,焦点在坐标轴上,直线
与椭圆
在第一象限内的交点是
,点
在
轴上的射影恰好是椭圆
的右焦点
,椭圆
的另一个焦点是
,且
.
(1)求椭圆
的方程;
(2)直线
过点
,且与椭圆
交于
,
两点,求
的面积的最大值及此时
内切圆半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02430f83e4f662e788d234da3c56ce2.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ce3522ba092cf2f67dd5c2ad2f32ac.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a2a5e336b6bcba6354fd366c892dd06.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/f4b47995e30fd26ebc6cbf3ca48979ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4b47995e30fd26ebc6cbf3ca48979ed.png)
您最近一年使用:0次
名校
4 . 在平面直角坐标系
中,已知椭圆C:
(
>
>0)的右焦点为F(1,0),且过点(1,
),过点F且不与
轴重合的直线
与椭圆C交于A,B两点,点P在椭圆上,且满足
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/0bc1c0f8-c908-43f3-9761-2a389881e54f.png?resizew=220)
(1)求椭圆C的标准方程;
(2)若
,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.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/117f765580d8dd75713229f1a2ba0178.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/0bc1c0f8-c908-43f3-9761-2a389881e54f.png?resizew=220)
(1)求椭圆C的标准方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3137f547ed45102f2756dc127fa58a00.png)
您最近一年使用:0次
2019-12-23更新
|
413次组卷
|
3卷引用:江苏省南通市西亭高级中学2019-2020学年高三下学期学情调研数学试题
名校
5 . 如图,
为椭圆
上的一个动点,弦
分别过椭圆的左焦点
和右焦点
,当
垂直于
轴时,恰好有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b6ea83a37b6e88a87df84781dd05aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/39c96b2f-8220-4658-b746-2ba2d853b4a8.png?resizew=189)
(1)求椭圆的离心率
;
(2)设
试判断
是否为定值?若是,求出这个定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dec2ca6438c82b43f746057d8129885.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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b6ea83a37b6e88a87df84781dd05aa.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/1/39c96b2f-8220-4658-b746-2ba2d853b4a8.png?resizew=189)
(1)求椭圆的离心率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f2007d6e96c48a88b872b69ed3ade6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
您最近一年使用:0次
2019-12-16更新
|
312次组卷
|
2卷引用:甘肃省酒泉市瓜州县第一中学2021-2022学年高三下学期期中考试文科数学试题
6 . 如图,已知椭圆
的左、右焦点分别为
、
,以线段
为直径的圆与椭圆交于点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/f2b8f33c-c78d-4d21-a40e-6acb3f53dd34.png?resizew=211)
(1)求椭圆的方程;
(2)过
轴正半轴上一点
作斜率为
的直线
.
①若
与圆和椭圆都相切,求实数
的值;
②直线
在
轴左侧交圆于
、
两点,与椭圆交于点
、
(从上到下依次为
、
、
、
),且
,求实数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bb24fde672f136aa564b067e7ac3229.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/f2b8f33c-c78d-4d21-a40e-6acb3f53dd34.png?resizew=211)
(1)求椭圆的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17dda982b031f09ebe66ef4d1507b0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893d4e8d70ea2c716ac7b6c1777a77f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a510a3eb906b3ef0760b0d1723d11ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
7 . 已知椭圆C:
(a>b>0)的离心率为
,且经过点P(2,2).
(1)求椭圆C的方程;
(2)过点Q(1,-1)的直线与椭圆C相交于M,N两点(与点P不重合),试判断点P与以MN为直径的圆的位置关系,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79280809958af38e84c2600749a63624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(1)求椭圆C的方程;
(2)过点Q(1,-1)的直线与椭圆C相交于M,N两点(与点P不重合),试判断点P与以MN为直径的圆的位置关系,并说明理由.
您最近一年使用:0次
名校
8 . 已知椭圆
的离心率为
,右焦点到直线
的距离为
.
(1)求椭圆的方程;
(2)过点
作直线
交椭圆于
两点,交
轴于
点,满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac01ad57b76eeb3505b9c89141877d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a58d24f5ba9d4a03d3ea8feed02f55.png)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242dc4cf2720b503e26ec8017d31444f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6f74613428f96005549c8d14d23ad06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-05-07更新
|
1180次组卷
|
2卷引用:2020届宁夏石嘴山市平罗中学高三上学期期中考试数学(理)试题
名校
解题方法
9 . 已知椭圆
的左、右焦点分别为
,且椭圆上存在一点
,满足
.
(1)求椭圆
的标准方程;
(2)过椭圆
右焦点
的直线
与椭圆
交于不同的两点
,求
的内切圆的半径的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0dac53904bc8bccf1a4ad14cb810ac3.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/42dfeedb1b7bf383520fd0853ff14f32.png)
您最近一年使用:0次
2019-04-18更新
|
1009次组卷
|
7卷引用:2020届宁夏石嘴山市第三中学高三上学期期中考试数学(理)试题
名校
解题方法
10 . 已知椭圆C:
的离心率为
,长轴长为
.
Ⅰ
求椭圆C的方程;
Ⅱ
斜率为1的直线l过椭圆C的右焦点F,交椭圆C于A,B两点,设M为椭圆C上任意一点,且
,其中O为原点
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc860cece09bffcc2593dc7b11aee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb57575dea540c569265de158429425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd72b6a249a09c977c55226031195466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bbb391bcb279073a82e886896e47eea.png)
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3卷引用:陕西省宝鸡市宝鸡中学2019-2020学年高三上学期期中数学(理)试题