1 . 设
、
为椭圆
的两个焦点,P为椭圆上任一点,延长
至E,使
,l为
的垂直平分线,求证:l与椭圆只有唯一的公共点.
![](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/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da01a3abe1c9dc4e6283afa0dc1a0d39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e12555743aeddfc6d5de86a17d081dfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4e9ee390c8211b27fc8f9bcf6af934.png)
您最近一年使用:0次
解题方法
2 . 直线
交
轴于点
,交椭圆上
(
)于相异两点
,
,且
.
(1)求
的取值范围;
(2)将弦
绕点
旋转
得到线段
,设点
的坐标为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/664dd75ac186f08df210f40d98355711.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)将弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e7a123c9cc0e058db28841fb0edcf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffef5fb614a2b2a033451b523a21ac3.png)
您最近一年使用:0次
3 . 已知椭圆
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的上顶点
与下顶点
在直线
:
的两侧,且点
到
的距离是
到
的距离的
倍.
(Ⅰ)求
的值;
(Ⅱ)设
与
交于
,
两点,求证:直线
与
的斜率之和为定值.
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b2caf6048aa0807d8ba591963ff6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
您最近一年使用:0次
2021-09-10更新
|
510次组卷
|
4卷引用:河南省大联考2021-2022学年高三上学期阶段性测试(一)文科数学试题
河南省大联考2021-2022学年高三上学期阶段性测试(一)文科数学试题河南省大联考2021-2022学年高三上学期阶段性测试(一)理科数学试题河南省十所名校2021-2022学年高三上学期文科数学阶段性测试(一)(已下线)第11讲 椭圆(6大考点)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)
解题方法
4 . 如图,已知椭圆
:
,椭圆
:
,
,
.
为椭圆
上一动点且在第一象限内,直线
,
分别交椭圆
于
,
两点,连结
交
轴于
点.过
点作
交椭圆
于
,且
.
![](https://img.xkw.com/dksih/QBM/2021/9/7/2802926553350144/2803656190722048/STEM/1c5a7dc4c56c4b0982abda09edc58a7d.png?resizew=278)
(1)求证:直线
过定点,并求出该定点;
(2)若记
,
点的横坐标分别为
,
求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79201c42e9a26cc02d18b629ba42429.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdae78f4d3b8d8213ac3ac9a9567eb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81345e990891728353aac06058797de7.png)
![](https://img.xkw.com/dksih/QBM/2021/9/7/2802926553350144/2803656190722048/STEM/1c5a7dc4c56c4b0982abda09edc58a7d.png?resizew=278)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
(2)若记
![](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/2297930d54a0452220d963bfef6a616a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c15a90db6dfd1aab79a3728748cc6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8f670ae4c9e38ee2005ebafc5a48.png)
您最近一年使用:0次
2021-09-08更新
|
638次组卷
|
2卷引用:江苏省百校联考2021-2022学年高三上学期第一次考试数学试题
名校
5 . 已知椭圆C的中心为坐标原点,且以直线
(m∈R)所过的定点为一个焦点,过右焦点F2且与x轴垂直的直线被椭圆C截得的线段长为2.
(1)求椭圆C的标准方程;.
(1)设点A,B分别是椭圆C的左、右顶点,P,Q分别是椭圆C和圆O∶
上的动点(P,Q位于y轴两侧),且直线PQ与x轴平行,直线AP,BP分别与y轴交于不同的两点M,N,求证∶QM与QN所在的直线互相垂直.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c2c59bbda1345612c6f7632355ea63.png)
(1)求椭圆C的标准方程;.
(1)设点A,B分别是椭圆C的左、右顶点,P,Q分别是椭圆C和圆O∶
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d61985901c2bc698d72ac88f4e1eb65.png)
您最近一年使用:0次
2021-09-08更新
|
280次组卷
|
4卷引用:安徽省十校联盟2021-2022学年高三上学期开学摸底考试文科数学试题
安徽省十校联盟2021-2022学年高三上学期开学摸底考试文科数学试题广东省深圳外国语学校2022届高三上学期第一次月考数学试题广东省广州市重点高中2022届高三上学期第一次月考数学试题(已下线)第十一章 圆锥曲线专练14—椭圆大题(证明题)-2022届高三数学一轮复习
6 . 在平面直角坐标系
中,
,
,C是满足
的一个动点.
(1)求
垂心H的轨迹方程;
(2)记
垂心H的轨迹为
,若直线l:
(
)与
交于D,E两点,与椭圆T:
交于P,Q两点,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca22d434c8671cf39eba5fa03b31ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2d7ff2b15c4e93fe6b92baca3c76d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f2a8d0c77c54fdf9aa97978f8e5dc0b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f6978eb6a3f71949b240260be84351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad847293e9c58676607222f35b0395ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b43cb8c0f6c3d7be3ad775acfc3117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc0101f71b8868072edef8f80040fc76.png)
您最近一年使用:0次
2021-09-06更新
|
1354次组卷
|
4卷引用:全国新高考2021届高三数学方向卷试题(A)
全国新高考2021届高三数学方向卷试题(A)广东省2022届高三上学期调研仿真数学试题(已下线)专题40 轨迹方程求解方法-学会解题之高三数学万能解题模板【2022版】(已下线)热点10 直线与圆-2022年高考数学【热点·重点·难点】专练(全国通用)
名校
7 . 已知椭圆
(
)的焦点是F1,F2,且| F1F2|=2,离心率为
.
(1)求椭圆的方程;
(2)过椭圆右焦点F2的直线
交椭圆于
,
(
)两点,点Q是直线l上异于F2的一点,且满足
.求证:点Q的横坐标是定值.
![](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/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆的方程;
(2)过椭圆右焦点F2的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9a796109c08a2e29a05ae8b52a5b41.png)
您最近一年使用:0次
2021-08-31更新
|
584次组卷
|
2卷引用:北京市牛栏山第一中学2020-2021学年高二下学期期中考试数学试题
名校
解题方法
8 . 已知椭圆E:
,P为椭圆E的右顶点,O为坐标原点,过点P的直线l1,l2与椭圆E的另外一个交点分别为A,B,线段PA的中点为M,线段PB的中点为N.
(1)若直线OM的斜率为
,求直线l1的方程;
(2)若OM⊥ON,证明:直线AB过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/def6b1847098dd39d653c77786cb4eba.png)
(1)若直线OM的斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f30d314a642667fef559032264647366.png)
(2)若OM⊥ON,证明:直线AB过定点.
您最近一年使用:0次
2021-08-24更新
|
579次组卷
|
3卷引用:江西省宜春市丰城市第九中学2020-2021学年高二下学期第三次月考数学(理)试题
9 . 在平面直角坐标系
中,
,
,曲线
上的动点
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57952759d822a85055f0e80236d95a4c.png)
,直线
过
交曲线
于
、
两点.
(1)求曲线
的方程;
(2)当
时,
在
轴上方时,求
、
的坐标;
(3)设
,
是曲线
上的任意一点,若
,求证:动点
在定圆上运动.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d563e1fcd5af55a3d5aa96f1eb54fa25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ac8fa800c00933279f2b20e5034438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57952759d822a85055f0e80236d95a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c828839ec7daffe75d61c24298afe7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc0ecd297acad259e44d2b94f0acb12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2189926cef60e7a3af90774782f84694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5209cf3b0c9a91e93f73aa93cab13d18.png)
您最近一年使用:0次
解题方法
10 . 已知椭圆
,双曲线
,设椭圆
与双曲线
有相同的焦点,点
,
分别为椭圆
与双曲线
在第一、二象限的交点.
(1)求椭圆
的标准方程;
(2)设直线
与
轴相交于点
,过点
作直线交椭圆
于
,
两点(不同于
,
),求证:直线
与直线
的交点
在一定直线上运动,并求出该直线的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/154330ed83f84360ccd0c2c59973f674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d2434ee56e28be2c28d278e4a53e99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c493c860dba2c861a596db8059a5a96c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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5卷引用:河南省许昌市2020-2021学年高二下学期期末数学(理)试题
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