名校
1 . 已知椭圆
的右焦点为
,过
的直线
交椭圆于
两点(直线
与坐标轴不垂直),若
的中点为
,
为坐标原点,直线
交直线
于
.
(Ⅰ)求证:
;(Ⅱ)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36bfcf494549dc07de73b3978b8cb42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/848f0a6a566d677429c364c2da9f6404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e430f13f42cf2d44aa0f0e20b959684f.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/075bc6df108c9c2b3b5ac46bca7c8d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a07daa7893c0aa4313394369303561.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(Ⅰ)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb19311babacf4f5989dd67ea863ec3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9133cdd06a03e22b25b6ba346a1a80f8.png)
您最近一年使用:0次
2018-11-28更新
|
1082次组卷
|
5卷引用:2020届河北省衡水中学高三上学期七调考试数学(理)试题
2020届河北省衡水中学高三上学期七调考试数学(理)试题(已下线)基础套餐练04-【新题型】2020年新高考数学多选题与热点解答题组合练(已下线)专题01 解析几何(第三篇)-备战2020高考数学黄金30题系列之压轴题(新课标版)【全国百强校】辽宁省实验中学2018-2019学年高二上学期期中考试数学(文)试题【全国百强校】辽宁省实验中学2018-2019学年高二上学期期中考试数学(理)试题
名校
解题方法
2 . 已知
为椭圆
上三个不同的点,
为坐标原点,且
为
的重心.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/ed0d66e8-16a2-4cbb-9ec2-8e615745044b.png?resizew=199)
(1)如果直线
、
的斜率都存在,求证:
为定值;
(2)试判断
的面积是否为定值,如果是就求出这个定值,否则请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff1455a4045eb93f482c0751840aea7.png)
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/10/ed0d66e8-16a2-4cbb-9ec2-8e615745044b.png?resizew=199)
(1)如果直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70368971462ca516a9a9b03fbaa8e81.png)
(2)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2018-08-15更新
|
638次组卷
|
4卷引用:湖北省部分重点中学2018-2019学年度上学期新高三开学考试数学(理科)试题
湖北省部分重点中学2018-2019学年度上学期新高三开学考试数学(理科)试题四川省成都市龙泉驿区第一中学校2019届高三上学期入学考试数学(理)试题【全国百强校】山东省枣庄第八中学2019届高三12月月考数学(理)试题(已下线)考点53 圆锥曲线的综合问题-定点、定值和探索性问题(考点专练)-备战2021年新高考数学一轮复习考点微专题
名校
3 . 已知椭圆
:
的右焦点为
,设过
的直线
的斜率存在且不为0,直线
交椭圆于
,
两点,若
中点为
,
为原点,直线
交
于点
.
(1)求证:
;
(2)求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc2518c64be54c16908f868034d8fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/0f85fca60a11e1af2bf50138d0e3fe62.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7726031124f33221efa432774772b0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d6597f9a35b5fddb282fc18f79de74c.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
上的点到它的两个焦点的距离之和为
,以椭圆
的短轴为直径的圆
经过这两个焦点,点
,
分别是椭圆
的左、右顶点.
(1)求圆
和椭圆
的方程.
(2)已知
,
分别是椭圆
和圆
上的动点(
,
位于
轴两侧),且直线
与
轴平行,直线
,
分别与
轴交于点
,
.求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/d053b14c8588eee2acbbe44fc37a6886.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/9dc94d2886db80a11b81b71f9a6d1d7a.png)
您最近一年使用:0次
2018-02-24更新
|
1381次组卷
|
5卷引用:【全国百强校】北京八中2018—2019学年第一学期高三期中考试数学(理科)试题
10-11高三上·广东深圳·期中
5 . 已知椭圆的中心在原点,焦点在
轴上,长轴长是短轴长的2倍且经过点
,平行于
的直线
在
轴上的截距为
,
交椭圆于
两个不同点.
(1)求椭圆的标准方程以及
的取值范围;
(2)求证直线
与
轴始终围成一个等腰三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85d23fc512ad69a2d5919ce690407704.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](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/87484a879f450ab097f720fb2a0f4a2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆的标准方程以及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)求证直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03df57efff473b3cfeb8503796b7d6b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2017-08-20更新
|
577次组卷
|
7卷引用:2011届广东省深圳高级中学高三上学期期中考试数学理卷
(已下线)2011届广东省深圳高级中学高三上学期期中考试数学理卷(已下线)2013届云南玉溪一中高三上学期期中考试文科数学试卷(已下线)2010-2011年江西省鄱阳县油墩街中学高二下学期期中考试理科数学(已下线)2010-2011学年重庆市“名校联盟”高二第一次联考文科数学试卷(已下线)2012-2013学年山东省济宁市汶上一中高二12月质检理科数学试卷江西省新余市2016-2017学年高二下学期期末质量检测数学(理)试题湖北省恩施州2019-2020学年高二上学期期末数学(理)试题
解题方法
6 . 如图,已知椭圆
的左、右顶点分别为
,上、下顶点分别为
,两个焦点分别为
,
,四边形
的面积是四边形
的面积的2倍.
![](https://img.xkw.com/dksih/QBM/2017/12/1/1829333264596992/1832875974443008/STEM/d540cd268f3f4641af36030774d3bb75.png?resizew=171)
(1)求椭圆
的方程;
(2)过椭圆
的右焦点且垂直于
轴的直线交椭圆
于
两点,
是椭圆
上位于直线
两侧的两点.若
,求证:直线
的斜率
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d468be20b4d43f5de75416de20e8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49afb73fe223e2642288cce5eef4bf9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92e5d91f4f631c580c155eba8c92bda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6939353e2387477b4149848a2818e63.png)
![](https://img.xkw.com/dksih/QBM/2017/12/1/1829333264596992/1832875974443008/STEM/d540cd268f3f4641af36030774d3bb75.png?resizew=171)
(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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/198c249705ffdee268cd836f382e3855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1dc007e36c78ab98df4cd2383b4c5d.png)
您最近一年使用:0次
7 . 在平面直角坐标系
中,已知椭圆
,如图所示,斜率为
且不过原点的直线
交椭圆
于两点
,线段
的中点为
,射线
交椭圆
于点
,交直线
于点
.
(1)求
的最小值;
(2)若
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0296bd9900adcc311f59ad44e940b86f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/893d4e8d70ea2c716ac7b6c1777a77f2.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a299d2b999568e80be8005565ba209a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37222b1c274d61313dd0be08bb6ca623.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd04fca023c72763a14a30513896762.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a879b0ae87a7093d1e011a6543807b94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/18/11f7ce8d-93a0-4b4e-80e4-cb54a374adfd.png?resizew=213)
您最近一年使用:0次
2017-11-16更新
|
1694次组卷
|
3卷引用:河南省漯河市高级中学2018届高三上学期第三次模拟考试(期中)数学(理)试题
名校
8 . 已知椭圆
,点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacfc149ede71417fa599c21b5a84cb8.png)
(Ⅰ)求椭圆
的短轴长和离心率;
(Ⅱ)过
的直线
与椭圆
相交于两点
,设
的中点为
,判断
与
的大小,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3995288b1519ab38e1b412d91dc8fb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacfc149ede71417fa599c21b5a84cb8.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6f6816548e716a864e088c962cec576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4066dc453c2e3fa4b08023f76229e0a7.png)
您最近一年使用:0次
2018-01-19更新
|
651次组卷
|
6卷引用:北京市海淀区2018届高三第一学期期末理科数学试题
9 . 已知椭圆C的两个顶点分别为A(−2,0),B(2,0),焦点在x轴上,离心率为
.
(Ⅰ)求椭圆C的方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)点D为x轴上一点,过D作x轴的垂线交椭圆C于不同的两点M,N,过D作AM的垂线交BN于点E.求证:△BDE与△BDN的面积之比为4:5.
您最近一年使用:0次
2017-08-07更新
|
10351次组卷
|
23卷引用:2017年全国普通高等学校招生统一考试文科数学(北京卷精编版)
2017年全国普通高等学校招生统一考试文科数学(北京卷精编版)(已下线)专题9.9 圆锥曲线的综合问题(练)【理】-《2020年高考一轮复习讲练测》(已下线)专题9.5 椭圆(练)【理】-《2020年高考一轮复习讲练测》(已下线)专题18 解析几何综合-五年(2016-2020)高考数学(文)真题分项(已下线)测试卷20 椭圆(B)-2021届高考数学一轮复习(文理通用)单元过关测试卷(已下线)测试卷19 椭圆(A)-2021届高考数学一轮复习(文理通用)单元过关测试卷(已下线)专题11 圆锥曲线-五年(2017-2021)高考数学真题分项(新高考地区专用)(已下线)专题22 圆锥曲线中的定点、定值、定直线问题 微点2 圆锥曲线中的定值问题甘肃省兰州市外国语高级中学2022-2023学年高三上学期第二次月考文科数学试题(已下线)北京十年真题专题08平面解析几何北京十年真题专题08平面解析几何(已下线)专题24 解析几何解答题(文科)-3专题12平面解析几何(第二部分)湖北省孝感市七校教学联盟2016-2017学年高二下学期期末考试数学(理)试题2018秋高中数学人教A版选修1-1第二章:圆锥曲线与方程 评估验收(二)【全国百强校】宁夏石嘴山市第三中学2018-2019学年高二上学期期中考试数学(文)试题步步高高二数学暑假作业:【理】作业15 曲线与方程、椭圆步步高高二数学暑假作业:【文】作业15 椭 圆安徽省铜陵市枞阳县浮山中学2019-2020学年高二上学期期中数学(理)试题山西省太原市小店区山西大学附属中学校2019-2020学年高二上学期12月月考数学(理)试题山西省山西大学附中2019-2020学年高二(12月份)第四次诊断数学(理科)试题(已下线)检测(六)-【专题突破】2021-2022学年高二数学之圆锥曲线与方程(人教A版选修1-1)北京市第二外国语学院附属中学2022-2023学年高二上学期期中考试数学试题
解题方法
10 . 已知椭圆C:
的离心率为
,点
在椭圆C上,O为坐标原点.
(Ⅰ)求椭圆C的方程;
(Ⅱ)设动直线
与椭圆C有且仅有一个公共点,且
与圆
的相交于不在坐标轴上的两点
,
,记直线
,
的斜率分别为
,
,求证:
为定值.
![](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/165abb555bfea442a1a09c6c00d3f21e.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)设动直线
![](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/8d35465f3e40ce00a1dce54b943ae183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1652145a4785b50fa22fdd8c63f724b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ae18c3151ef1283fbd7854562fdfc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b881044b5c73db6fcce110525741b02.png)
您最近一年使用:0次
2016-12-04更新
|
455次组卷
|
2卷引用:2016届北京市西城区高三上学期期末考试文科数学试卷