1 . 已知椭圆
:
的左、右焦点分别为
,
,椭圆上两点坐标分别为
,
,若△
的面积为
,
.
(1)求椭圆
的标准方程;
(2)过点
(
为坐标原点)作两条互相垂直的射线,与椭圆
分别交于
,
两点,证明:点
到直线
的距离为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6dc791ae552024ea0df7905bf190f30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace7c9e3da8613175ca07c54c116127a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3160fc73f2a90ae4a1a97351ab2673b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9199b50dd0036be9b764c621d1d46f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cef419f0740dae5db5cc51675bc51afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e088c20cc968303b4545adc4b5416e66.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
解题方法
2 . 在平面直角坐标系
中,已知椭圆C:
的左焦点
坐标为
,
分别为椭圆C的左、右顶点,过左焦点
的直线
交椭圆C于
两点(其中
在
轴上方),当直线
垂直于
轴时,
.
(1)求椭圆C的标准方程;
(2)若
与
的面积之比为1:7,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6554ac3dff4a59833e407db887f6e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddafc7d1c71c9c77e54f8d353117f858.png)
(1)求椭圆C的标准方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c105d6ba18fbb0581fb982175e2eac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7e64c953aaf341e772a5fe776fbc78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
10-11高二下·安徽·期中
名校
3 . 椭圆
与直线
交于
两点,过原点与线段
中点的直线的斜率为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0956b54bc418fa72f3725d82796e418b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b78b98443d32512ddcfe86aefd507db.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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-07-11更新
|
3717次组卷
|
16卷引用:2010-2011学年安徽省师大附中高二下学期期中考查数学卷
(已下线)2010-2011学年安徽省师大附中高二下学期期中考查数学卷2015-2016学年辽宁省葫芦岛一中高二上期中文科数学试卷2015-2016学年广西河池高中高二下第二次月考文科数学卷【全国百强校】山东省济南第一中学2018-2019学年高二上学期期中考试数学试题【全国百强校】甘肃省兰州第一中学2018-2019学年高二上学期期末考试数学(理)试题上海市华东师大一附中2017-2018学年高二上学期期末数学试题辽宁省沈阳市郊联体2019-2020学年高二上学期期末考试数学试题四川省成都市锦江区田家炳中学2019-2020学年高二上学期期中数学理科试题(已下线)3.1.2 椭圆(第二课时)(精练)-2020-2021学年一隅三反系列之高二数学新教材选择性必修第一册(人教A版)人教A版(2019) 选修第一册 实战演练 第三章 课时练习23 直线与椭圆的位置关系沪教版(2020) 选修第一册 单元训练 第2章 椭圆(A卷)(已下线)2.2椭圆(作业)(夯实基础+能力提升)-【教材配套课件+作业】2022-2023学年高二数学精品教学课件(沪教版2020选修第一册)智能测评与辅导[理]-椭圆(已下线)考点42 椭圆(讲解)-2021年高考数学复习一轮复习笔记(已下线)专题9.5 椭圆 (精练)-2021年高考数学(理)一轮复习讲练测(已下线)专题41椭圆-2022年(新高考)数学高频考点+重点题型
名校
4 . 已知椭圆
与直线
都经过点
.直线
与
平行,且与椭圆
交于
两点,直线
与
轴分别交于
两点.
(1)求椭圆
的方程;
(2)证明:
为等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6273ba93528de4e6db67f5c9e24a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/978a3709d2e513704ea23a85ad8d085e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/03df57efff473b3cfeb8503796b7d6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f56f84dab98e04d18a61fe201942c7d.png)
您最近一年使用:0次
2020-06-23更新
|
147次组卷
|
5卷引用:【全国校级联考】安徽省示范高中培优联盟2017-2018学年高二下学期春季联赛数学(文)试题
解题方法
5 . 已知点
与点
都在椭圆
上,且
的左集点为
,过点
的直线交椭圆
于
,
两点.
(1)求
的方程;
(2)若以
为直径的圆经过点
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaef66a0582e95fb5c57a405acdea9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/651fc21d1b60a545fcd2ae11fa194216.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)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
解题方法
6 . 已知椭圆
:
的离心率为
,直线
:
与椭圆
交于
,
两点.当
时,
.
(1)求椭圆
的方程;
(2)设
关于
轴的对称点为
,
,证明:
、
、
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303094682b317daea83be885d1c7ff4b.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/4875f6b13d20d1389a26ad77cca5bd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
2020-04-06更新
|
235次组卷
|
4卷引用:安徽省安庆市岳西县店前中学2020-2021学年高二上学期期末理科数学试题
7 . 已知P是圆C:
上的动点,点
,线段
的垂直平分线交
于点Q.
(1)求Q的轨迹
的方程;
(2)点E在x轴上,过点C的直线l交
于B,D两点,直线
,
分别交y轴于M,N两点,且
,求E的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6afc954e87bd737ec051d5c94837c8a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8748dc55e2f45bc37fc4d84d7310f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
(1)求Q的轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)点E在x轴上,过点C的直线l交
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d21ce7a35adb62932f10a65cb0a70e77.png)
您最近一年使用:0次
2020-03-15更新
|
205次组卷
|
2卷引用:安徽省六安市霍邱县第一中学2019-2020学年高二下学期开学考试文科数学试题
名校
8 . 设椭圆
的长轴长
,离心率为
,定义直线
为椭圆的类准线,若椭圆C的类准线方程为
,
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/0c0b5bba-283d-4b0a-b5dc-195b9d84e9a2.png?resizew=162)
(1)求椭圆C的方程;
(2)如图,不垂直于x轴的直线
与椭圆C交于A、B两点,点
在直线l的左上方,且
,直线PA、PB分别与y轴交于点M、N,若线段MN长度是4,求k.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3337ce20986618e4c9ba74063c5aa3d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a7e850fd3db1a8ae7082557fb344de0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/0c0b5bba-283d-4b0a-b5dc-195b9d84e9a2.png?resizew=162)
(1)求椭圆C的方程;
(2)如图,不垂直于x轴的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32838e41c93a5aa10d2ce2d023d8b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83640592853a53872d7af69c0cffc1bb.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆
的离心率为
,且经过点
.
(1)求椭圆C的方程;
(2)设过点
的直线l与椭圆C交于
,
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
(1)求椭圆C的方程;
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e8fd7b0f5e19e98eebbe844b2e5347.png)
您最近一年使用:0次
2020-02-26更新
|
279次组卷
|
3卷引用:安徽省皖西南联盟2019-2020学年高二上学期期末数学(文)试题
名校
解题方法
10 . 已知椭圆
的一个焦点与抛物线
的焦点重合,且抛物线的准线被椭圆
截得的弦长为1,
是直线
上一点,过点
且与
垂直的直线交椭圆于
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/d65e65fe-ce2c-45a2-a05b-60637cced1c6.png?resizew=218)
(1)求椭圆
的标准方程;
(2)设直线
的斜率分别为
,求证:
成等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4856428c4f87eada4e504fce8cc91d1e.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/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a29ba49963134a7232fa8574105fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/d65e65fe-ce2c-45a2-a05b-60637cced1c6.png?resizew=218)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f787aa6043d34a6fdd225637e8fc6f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8662be7d259210ad509ceac151d063c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8662be7d259210ad509ceac151d063c6.png)
您最近一年使用:0次