名校
解题方法
1 . 已知椭圆
的长轴长与短半轴长之比为
,且点
在椭圆C上.
(1)求椭圆C的方程;
(2)直线
与x轴,椭圆C依次相交于
三点,点M为线段
上的一点,若
,求
(O为坐标原点)面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c3c738a7717513105839240bf59a09.png)
(1)求椭圆C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a00bc275f025db674857c64d17a3de46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8ec66d29e434a5eb44f03c58683354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d052022c006994f281414c331d0e1e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c693731f073a4f21f0c92a3b610804f4.png)
您最近一年使用:0次
2023-06-22更新
|
529次组卷
|
5卷引用:河南省郑州市等3地2022-2023学年高三下学期6月冲刺卷(五)全国卷理科数学试题
2 . 已知
,
分别为椭圆
的左、右焦点,点
在椭圆上.
(1)求椭圆C的标准方程;
(2)直线l交椭圆C于A,B两点(异于Q点),
,求直线l的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13683e2ecf2164a0adbfdb9923d210a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ab3c75d42587ba6174ccce153f4020d.png)
(1)求椭圆C的标准方程;
(2)直线l交椭圆C于A,B两点(异于Q点),
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a877428408d09ac0112f833e54a8e34a.png)
您最近一年使用:0次
3 . 有一个半径为4的圆形纸片,设纸片上一定点
到纸片圆心
的距离为
,将纸片折叠,使圆周上一点M与点F重合,以点F,E所在的直线为x轴,线段EF中点为原点O,建立平面直角坐标系.
(1)记折痕与ME的交点P的轨迹为曲线C,求曲线C的方程.
(2)若直线
与曲线C交于A,B两点.
(ⅰ)当k为何值时,
为常数d,并求出d的值.
(ⅱ)以A,B为切点,作曲线C的两条切线,设其交点为Q,当
时,证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)记折痕与ME的交点P的轨迹为曲线C,求曲线C的方程.
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a11a6557746896f12fbeaa4540ee45.png)
(ⅰ)当k为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a0d9a2f14f7e789892487d6585804a.png)
(ⅱ)以A,B为切点,作曲线C的两条切线,设其交点为Q,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0a70c1715848c8ea4fe4cedd8648c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4021a6a6fff938323b06fd71c50c8930.png)
您最近一年使用:0次
解题方法
4 . 已知椭圆
的离心率为
,长轴长为4.
(1)求椭圆
的标准方程;
(2)过点
的直线
交椭圆
于
两点,点
在直线
上且在椭圆外,若
成等差数列,求点
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/355dffb42861f3e297694f4be77c694c.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b61e1a64c965ae14d4484a32e7a920e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-06-08更新
|
204次组卷
|
2卷引用:河南省名校2022-2023学年高二下学期5月联考数学试题
解题方法
5 . 已知椭圆
的离心率与双曲线
的离心率互为倒数,椭圆
的短轴长为2,点
是左,右顶点.
(1)求椭圆
的方程;
(2)点
是坐标原点,直线
经过点
,并且与椭圆
交于
直线
与直线
交于点
,设直线
的斜率分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3263811a06227abf213822c14a314dc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88f79da28a2878b27e3742dc8c92fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e89cf47f88ea5f8ddce19f51e98e97af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
您最近一年使用:0次
名校
6 . 已知椭圆
的离心率为
,直线
与E交于A,B两点,当
为双曲线
的一条渐近线时,A到y轴的距离为
.
(1)求E的方程;
(2)若过B作x轴的垂线,垂足为H,OH的中点为N(O为坐标原点),连接AN并延长交E于点P,直线PB的斜率为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789bf265c5d1af375c83d043ec65298c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d79a9d7c59c061259eba07baded4941.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38be38165dc2307982fc57001a447c56.png)
(1)求E的方程;
(2)若过B作x轴的垂线,垂足为H,OH的中点为N(O为坐标原点),连接AN并延长交E于点P,直线PB的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3fbcd952073f38340769b8fbca5b23.png)
您最近一年使用:0次
2023-05-26更新
|
639次组卷
|
7卷引用:河南省郑州市九师联盟2023届高三考前预测押题理科数学试题
名校
解题方法
7 . 已知椭圆
的中心为坐标原点,对称轴为
轴,
轴,且过
两点.
(1)求椭圆
的方程;
(2)是否存在直线
,使得直线
与圆
相切,与椭圆
交于
两点,且满足
(
为坐标原点)?若存在,请求出直线
的方程,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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c36e092b08bfdc9938ceaa68bbeacd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在直线
![](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/f240cccaf24af8a796abb95cb42be52e.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/cc11e7549cfce9220e70250ac943e457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-05-19更新
|
510次组卷
|
8卷引用:河南省焦作市博爱县第一中学2023-2024学年高三上学期定位考试数学试题
名校
解题方法
8 . 已知椭圆
过点
,且离心率为
.
(1)求椭圆C的标准方程;
(2)若直线
与椭圆C交y轴右侧于不同的两点A,B,试问:
的内心是否在一条定直线上?若是,请求出该直线方程;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cba824597ac1256ef641fb87346dda6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d307161f8f5b4353f267bf398caef8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
您最近一年使用:0次
2023-05-19更新
|
594次组卷
|
4卷引用:河南省新未来2023届高三5月联考文科数学试题
名校
解题方法
9 . 已知椭圆
:
的左、右顶点分别为
,
,M是椭圆R上异于A,B的一点,且直线MA与直线MB的斜率之积满足
.
(1)求椭圆R的标准方程;
(2)过点
的直线交椭圆于C,D两点,且直线AC,BD交于点Q,求点Q的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1658e5d429f07818fe38e4fb0b43bf3a.png)
(1)求椭圆R的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
您最近一年使用:0次
2023-05-19更新
|
506次组卷
|
5卷引用:河南省青桐鸣大联考2023届高三下学期5月考试文科数学试题
解题方法
10 . 已知椭圆
的右焦点为
,且
是椭圆
上一点.
(1)求椭圆
的方程;
(2)若过
且斜率不为0的直线
与椭圆
相交于
两点,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dc486cdfb2ad3d27d8f2672a5f2f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f5090d910284f5b66a70364a675e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-05-09更新
|
388次组卷
|
2卷引用:河南省豫南名校毕业班2023届高三仿真测试三模文科数学试题