名校
解题方法
1 . 已知椭圆
的离心率为
,点
,
是椭圆C的左右焦点,点P是C上任意一点,若
面积的最大值为
.
(1)求椭圆C的标准方程;
(2)直线
与椭圆C在第一象限的交点为M,直线
与椭圆C交于A,B两点,连接
,
,与x轴分别交于P,Q两点,求证:
始终为等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c14ff9b66f21c05e52dc3c8908c2df.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/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆C的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c84e54fca7052108b4f2a299882a3f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e48df3cbddcbcd172de5f1895ee0407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a9dabb53dc826019fc8b6ae6d940c5.png)
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2020-12-30更新
|
284次组卷
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9卷引用:吉林省长春市第二实验中学2022-2023学年高二上学期期中数学试题
吉林省长春市第二实验中学2022-2023学年高二上学期期中数学试题安徽省安庆市宿松县程集中学2020-2021学年高二上学期期中数学试题甘肃省天水市甘谷县第一中学2019-2020学年高二上学期期末数学(理)试题人教B版(2019) 选择性必修第一册 过关斩将 第二章 平面解析几何 本章达标检测江西省新余市2020-2021学年高二下学期期末数学(理)试题(已下线)专题六 椭圆-2021-2022学年高二数学同步单元AB卷(人教A版2019选择性必修第一册)河南省新乡市原阳县第一高级中学2021-2022学年高二上学期12月数学(文)试题安徽省滁州市第二中学、定远县第三中学2022-2023学年高二上学期12月联考数学试题云南省临沧市民族中学-2022-2023学年高二上学期期末数学试题
名校
解题方法
2 . 已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的左、右焦点分别为
,
,点A在椭圆
上,且
,
的面积为
,点
在椭圆
上.
(1)求椭圆
的标准方程;
(2)斜率存在且不为零的直线
与椭圆
相交于
,
两点,点
的坐标为
,若直线
,
的倾斜角互补,求证:直线
过定点.
![](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/434249d6640b0c1a712d215cf8b83d5c.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/08fab3d0b2d405613743fa68d5ccac76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc8f58db909d006e4d829699863746.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)斜率存在且不为零的直线
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e7dbb4d8de32b258d813996710d6241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2dca049735b45fb9b2533c68605eddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-12-27更新
|
226次组卷
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4卷引用:吉林省长春市第二实验中学2020-2021学年高三上学期期中考试数学(理)试题
3 . 如图,
为圆
:
上一动点,点
的坐标为
,线段
的垂直平分线交直线
于点
.
![](https://img.xkw.com/dksih/QBM/2020/12/20/2617824410591232/2623062824681472/STEM/381398b9-860b-4b60-b6fa-3fc13e7b294e.png?resizew=259)
(1)求点
的轨迹方程;
(2)设点
的轨迹为
,F为
的左焦点,
为坐标原点,M为
上任意一点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3bf1f7538aa15626bab82fe5cc65e0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0a7f9ee3c6ccaea8dd3d5ad042e5f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2020/12/20/2617824410591232/2623062824681472/STEM/381398b9-860b-4b60-b6fa-3fc13e7b294e.png?resizew=259)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c3247e7ac8d33afdf720380fbf78f36.png)
您最近一年使用:0次
2020-12-27更新
|
363次组卷
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3卷引用:吉林省长春外国语学校2021-2022学年高二上学期期中考试数学试题
4 . 已知圆上
上任取一点
,过点
作
轴的垂线段
,垂足为
,当
在圆上运动时,线段
中点为
.
(1)求点
的轨迹方程;
(2)若直线l的方程为y=x-1,与点
的轨迹交于
,
两点,求弦
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若直线l的方程为y=x-1,与点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
2020-11-12更新
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599次组卷
|
3卷引用:吉林省长春市长春外国语学校2020-2021学年高二上学期期中考试数学试题
吉林省长春市长春外国语学校2020-2021学年高二上学期期中考试数学试题吉林省长春外国语学校2020-2021学年高二(上)期中数学试题(已下线)专题9.3 椭圆(精练)-2021年新高考数学一轮复习学与练
名校
解题方法
5 . 已知椭圆
的右焦点为
,左、右顶点为
、
,
,
.
(1)求椭圆
的标准方程;
(2)求直线
被椭圆
截得的弦长.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/381b499b85eb5d1ab5ff3660aaf8d775.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2544089ed73d896d1c17d71892e3fdc.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e747e5274776e352f3d9ff5c2efc4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2020-11-22更新
|
996次组卷
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4卷引用:吉林省长春外国语学校2021-2022学年高二上学期期中考试数学试题
名校
6 . 已知椭圆
的一个焦点是
,那么实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa8e4dc922347cf61b69f7817ca4ddd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
A.![]() | B.![]() | C.3 | D.5 |
您最近一年使用:0次
2020-10-23更新
|
1676次组卷
|
9卷引用:吉林省长春外国语学校2022-2023学年高二上学期11月期中数学试题
吉林省长春外国语学校2022-2023学年高二上学期11月期中数学试题黑龙江省大庆市东风中学2020-2021学年高二上学期期中考试数学(理)试题黑龙江省大庆市东风中学2020-2021学年高二上学期期中考试数学(文)试题陕西省西安市第八十九中学2020-2021学年高二上学期期中理科数学试题【区级联考】北京市东城区2018-2019学年高二上学期期末检测数学试题北京市一七一中学2019-2020学年高二第一学期月考(12月)数学试卷北京交通大学附属中学东校区2019~2020学年高二第二学期期末测试数学试题1.1 椭圆及其标准方程同步练习-2022-2023学年高二上学期数学北师大版(2019)选择性必修第一册人教A版(2019) 选修第一册 数学奇书 第三章 圆锥曲线的方程 3.1 椭圆 3.1.1 椭圆及其标准方程 第1课时 椭圆及其标准方程(一)
名校
7 . 如图,设椭圆
的左、右焦点分别为
,点
在椭圆上,
的面积为
.
(2)设圆心在
轴上的圆与椭圆在
轴的上方有两个交点,且圆在这两个交点处的两条切线相互垂直并分别过不同的焦点,求圆的半径.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bffddea42da36fddb04a3efdf7afee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(2)设圆心在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2020-06-25更新
|
821次组卷
|
5卷引用:吉林省长春市第八中学2022-2023学年高二上学期期中数学试题
名校
解题方法
8 . 已知
分别是椭圆
:
的左右焦点,点
在椭圆
上,且抛物线
的焦点是椭圆
的一个焦点.
(1)求椭圆
的标准方程;
(2)过点
作不与
轴重合的直线
,设
与圆
相交于
两点,且与椭圆
相交于
两点,当
时,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/122ba80be450e578bef55b932232e884.png)
![](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/f88a1aa808d4b11f9601445d7981a83f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833bf16f0161259e9d973dbdd5c6b18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb398137779190b35492d9f06d5fbc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a5b099b9112ed6a9f71b4a65875ccf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00c705021ca3a5b148b99dde34fa94b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479905259def78f7f344d2e14302fe27.png)
您最近一年使用:0次
2020-05-29更新
|
222次组卷
|
2卷引用:吉林省实验中学2020-2021学年高二(上)期中数学(理科)试题
9 . 已知椭圆
的两个焦点分别为
,
,离心率为
,过
的直线
与椭圆
交于
,
两点,且
的周长为8.
(1)求椭圆
的方程;
(2)若一条直线与椭圆
分别交于
,
两点,且
,试问点
到直线
的距离是否为定值,证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/f89eef3148f2d4d09379767b4af69132.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5585a42c8f07ad90b94ace9db3d78994.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若一条直线与椭圆
![](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/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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19卷引用:吉林省长春市德惠市九校2019-2020学年高二上学期期中数学(理)试题
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解题方法
10 . 已知椭圆
的一个顶点为
,离心率为
,过左焦点
的直线交椭圆于
,
两点,右焦点设为
.
(1)求椭圆的方程;
(2)求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe067e110d40511dcee666583d10d40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/a3fb78c5f885034612c0e030b920143d.png)
(1)求椭圆的方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24c084b48b27ce17a659fb3e9b79d684.png)
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