1 . 如图,已知椭圆
与椭圆
有相同的离心率,点
在椭圆
上.过点
的两条不重合直线
与椭圆
相交于
两点,与椭圆
相交于
和
四点.
的标准方程;
(2)求证:
;
(3)若
,设直线
的倾斜角分别为
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40de76911377ce524655488973914c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d5915ae756cee0e30fed15da2ae16d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9b77128eab3b2c8d42f0031c9d87cc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b035d7e2a68f56d04ad9b79fab7b3b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc851d438b2124f8ca9bb48a637e8705.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca98887356d093d283abf16635db7249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
您最近一年使用:0次
2024-02-29更新
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1210次组卷
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5卷引用:重庆市西南大学附中、重庆育才中学、万州中学拔尖强基联盟2024届高三下学期二月联合考试数学试题
名校
解题方法
2 . 已知椭圆
(
)过点
,且离心率为
.
(1)求椭圆
的标准方程;
(2)设
为椭圆
的右顶点,直线
与椭圆交于
,
两点(
在第三象限),
是椭圆上的动点,直线
,
分别交直线
于点
,
,记
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0fe9059acc47d2447576e1260c4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49cba284d675a3028d7a8d54f1f8ae70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87609b100b8d39b52e25ef1bee9b772.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/0f85fca60a11e1af2bf50138d0e3fe62.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/9b0857e23b9c9a4f1686871122d6a3f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b0ca1fe3ae7a9e7fc961f7ebb76581.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febf7413b35cf2889fdb57a6b519087c.png)
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名校
解题方法
3 . 已知椭圆
:
的右焦点为
,过点
作倾斜角为
的直线交椭圆
于
、
两点,弦
的垂直平分线交
轴于点P,若
,则椭圆
的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
_________ .
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d0d980b756af41405b2747bb646d93f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
您最近一年使用:0次
2023-08-27更新
|
3163次组卷
|
13卷引用:浙江省名校新高考研究联盟(Z20名校联盟)2024届高三上学期第一次联考数学试题
浙江省名校新高考研究联盟(Z20名校联盟)2024届高三上学期第一次联考数学试题湖北省武汉市武钢三中2024届高三下学期开学考试数学试题(已下线)第八章 解析几何 专题3 复杂背景的离心率的求解问题浙江省绍兴蕺山外国语学校2023-2024学年高三上学期9月检测数学试题云南省昆明市嵩明县2024届高三上学期期中考试数学试题(已下线)重难点突破04 轻松搞定圆锥曲线离心率十九大模型(十九大题型)-4湖北省荆州市松滋市第一中学2024届高三上学期迎一检模拟检测(三)数学试题湖南省长沙市长郡中学2024届高三寒假作业检测(月考六)数学试题广东省广州市广东实验中学2024届高三教学情况测试(一)数学B卷(已下线)3.1.2 椭圆的简单的几何性质(AB分层训练)-【冲刺满分】2023-2024学年高二数学重难点突破+分层训练同步精讲练(人教A版2019选择性必修第一册)四川省眉山市眉山冠城七中实验学校2023-2024学年高二上学期期中数学试题(已下线)第三章 圆锥曲线的方程(压轴题专练)-2023-2024学年高二数学单元速记·巧练(人教A版2019选择性必修第一册)吉林省通化市梅河口市第五中学2023-2024学年高二上学期第二次月考数学试题
解题方法
4 . 定义:若椭圆
上的两个点
,
满足
,则称A,B为该椭圆的一个“共轭点对”,记作
.已知椭圆C:
上一点
.
(1)求“共轭点对”
中点B所在直线l的方程.
(2)设O为坐标原点,点P,Q在椭圆C上,且
,(1)中的直线l与椭圆C交于两点
.
①求点
,
的坐标;
②设四点
,P,
,Q在椭圆C上逆时针排列,证明:四边形
的面积小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/3170fac2bc69eb892f933884eab77a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ab5ed3dd54f42da747b01afdb7b031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50edfb9ed0d50d6f35ad6a130208d307.png)
(1)求“共轭点对”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
(2)设O为坐标原点,点P,Q在椭圆C上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9ab90788bfa77a7287d14ce54efb02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6bfbdd01cbd00209f89e5d703f0caa.png)
①求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
②设四点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3227c1743747bfe46953dc2280792d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
您最近一年使用:0次
名校
解题方法
5 . 定义:若椭圆
上的两个点
满足
,则称
为该椭圆的一个“共轭点对”,记作
.已知椭圆
的一个焦点坐标为
,且椭圆
过点
.
(1)求椭圆
的标准方程;
(2)求“共轭点对”
中点
所在直线
的方程;
(3)设
为坐标原点,点
在椭圆
上,且
,(2)中的直线
与椭圆
交于两点
,且
点的纵坐标大于0,设四点
在椭圆
上逆时针排列.证明:四边形
的面积小于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3170fac2bc69eb892f933884eab77a30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b35a77ce2b5d66c76b336a48d9d3340.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50edfb9ed0d50d6f35ad6a130208d307.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求“共轭点对”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e82db0c7d2c362cf4a70027aaa19be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a9ab90788bfa77a7287d14ce54efb02.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/04d468be20b4d43f5de75416de20e8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d73d8697d4b34405f5b65ed0a275511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa3227c1743747bfe46953dc2280792d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6093eebca8f3ff82ce9298feb197e955.png)
您最近一年使用:0次
2023-09-13更新
|
1200次组卷
|
8卷引用:上海市格致中学2024届高三上学期开学考试数学试题
上海市格致中学2024届高三上学期开学考试数学试题(已下线)专题突破卷23 圆锥曲线大题归类(已下线)重难专攻(十一)?圆锥曲线中的证明,探究性问题(B素养提升卷)(已下线)重难点突破07 圆锥曲线三角形面积与四边形面积题型全归类(七大题型)(已下线)压轴题圆锥曲线新定义题(九省联考第19题模式)讲(已下线)专题22 新高考新题型第19题新定义压轴解答题归纳(9大核心考点)(讲义)(已下线)江苏省南通市2024届高三第二次调研测试数学试题变式题 16-19海南省海口市农垦中学2023-2024学年高二上学期期中数学试题
名校
解题方法
6 . 已知
分别是椭圆
的左、右焦点,
是椭圆
上一点,且
.
(1)求椭圆
的方程;
(2)延长
,并与椭圆
分别相交于
两点,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f98254a6193566587a70c7d95fdabf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e641014eb998f16c14ee0ec59f9d54f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfd7c959996c1afc6942c9f8e145ba5.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)延长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e75ce07a732d2822ae1c809a1c4db318.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/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
2023-08-21更新
|
1239次组卷
|
6卷引用:云南省昆明市第十中学2024届高三上学期开学考试数学试题
云南省昆明市第十中学2024届高三上学期开学考试数学试题黑龙江省大庆市2024届高三第一次教学质量检测数学试题(已下线)模块一 专题2 解析几何(2)(已下线)人教A版2019选择性必修第一册综合测试(提升)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)(已下线)2.1.2 椭圆的简单几何性质(分层练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)江苏省徐州市睢宁高级中学2023-2024学年高二上学期10月学情调研数学试题
名校
解题方法
7 . 已知A,B为椭圆
的左、右顶点,P为椭圆上异于A,B的一点,直线AP与直线BP的斜率之积为
,且椭圆C过点
.
(1)求椭圆C的标准方程;
(2)若直线AP,BP分别与直线
相交于M,N两点,且直线BM与椭圆C交于另一点Q,证明:A,N,Q三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602baac86c2b1668ecdfadc8a5948885.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e454c7161999e2a67138869f59d319b.png)
(1)求椭圆C的标准方程;
(2)若直线AP,BP分别与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/495bb3e5a3a9d35f5c9f0cf1f5d51876.png)
您最近一年使用:0次
2023-07-25更新
|
922次组卷
|
6卷引用:广西南宁市第二中学2024届高三下学期开学考试数学试卷
广西南宁市第二中学2024届高三下学期开学考试数学试卷贵州省贵阳市第一中学2023届高三上学期期末理科数学试题(已下线)重难专攻(十一)?圆锥曲线中的证明,探究性问题(核心考点集训)(已下线)重难点突破19 圆锥曲线中的仿射变换、非对称韦达、光学性质、三点共线问题(六大题型)-2(已下线)专题18 圆锥曲线高频压轴解答题(16大题型)(练习)(已下线)【一题多变】三点共线 向量斜率
名校
解题方法
8 . 已知椭圆
的上顶点为B,O为坐标原点,点
,线段
与
交于点
,点
在线段
上,且
,若直线
与圆
相交,则
的离心率的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cc6a4a6a61473650ba07584f609dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda96c372cadfda731a1b91e4f24ddb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-02-22更新
|
343次组卷
|
4卷引用:四川省南充市高坪中学2023届高三下学期第一次质量检测数学理科试题
名校
解题方法
9 . 已知椭圆
,
是其左、右焦点,
是其左、右顶点,过
的直线
交椭圆于
两点,且点
在
轴上方,
为坐标原点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/19/ac35d7ef-1d22-4a8a-8f0f-d99beda50b13.png?resizew=187)
(1)若
轴,求线段
的长;
(2)若
的中点为
,且点
在以
为直径的圆上,求点
的坐标;
(3)若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69daca955a565fa537347dd0d93783f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.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/01c74a907dda6bb7d9d56d009d9df253.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/19/ac35d7ef-1d22-4a8a-8f0f-d99beda50b13.png?resizew=187)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a501b2e6a3acc46212e59a166c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dc526324e78e4d9226d1b537f27845a.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/e3fa554b8b22872472d5467b8c528e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d0ac3d02682cdd4b4aaec0c19f4074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
解题方法
10 . 椭圆
的左、右焦点分别为
,
,上、下顶点分别为
,
,
与C的另一交点为M,
与C的另一交点为N,若直线
与直线
的斜率之积为
,则( )
![](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/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e6fddb2bd5699184034cfe4bfbf99d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50544a9a0a016aa6e1bdbc57a45078f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e884ca9429486026caa5e2310b0e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/578412660ce3730288cb8f887003cfd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecf41a917940c6d8a30da627c7b3e79f.png)
A.C的离心率为![]() |
B.![]() |
C.![]() |
D.设![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次