名校
解题方法
1 . 已知椭圆C:
的离心率为
,短轴长为2.
(1)求椭圆C的方程;
(2)设O为坐标原点,F为椭圆C的右焦点,过F的直线l与C交于A,B两点,点M的坐标为
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的方程;
(2)设O为坐标原点,F为椭圆C的右焦点,过F的直线l与C交于A,B两点,点M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57610afd116ab84660c807cc1aa3819.png)
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2023-08-17更新
|
1089次组卷
|
6卷引用:江西省南昌市第十中学2022-2023学年高二上学期期中数学试题
江西省南昌市第十中学2022-2023学年高二上学期期中数学试题(已下线)2.4.2直线与圆锥曲线的综合问题(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)江西省九江市永修县第一中学2023-2024学年高二上学期10月月考数学试题北京市第十一中学2023-2024学年高二上学期期中练习数学试题江西省上饶市余干县蓝天中学2023-2024学年高二上学期期中考试数学试题(已下线)专题08 椭圆双曲线综合大题(9题型)-【巅峰课堂】2023-2024学年高二数学上学期期中期末复习讲练测(人教A版2019选择性必修第一册)
2 . 已知
,
是椭圆
长轴上的两个端点,
是椭圆上一点,直线
,
的斜率分别为
,
,若椭圆的离心率为
,则
( )
![](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/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92d82f6055983b8e9bb5a9cd8e09ebe5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-01-14更新
|
428次组卷
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3卷引用:吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题
吉林省长春市长春外国语学校2022-2023学年高二上学期期末数学试题内蒙古通辽市重点校2022-2023学年高二下学期适应性考试数学(文)试题(已下线)第五篇 向量与几何 专题4 极点与极线 微点5 极点与极线综合训练
解题方法
3 . 已知椭圆
,左、右焦点分别为
、
,左、右顶点分别为
,若
为椭圆上一点,
的最大值为
,点
在直线
上,直线
与椭圆
的另一个交点为
,直线
与椭圆
的另一个交点为
,其中
不与左右顶点重合.
(1)求椭圆
的标准方程;
(2)从点
向直线
作垂线,垂足为
,证明:存在点
,使得
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9220da190bfdf224835dbf277efa99a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.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/bd33764ff4efddfe11a98a609753715c.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/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)从点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4110cc2b5dc3aabd585a8e9a81855a12.png)
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解题方法
4 . 已知点P在椭圆C:
上.
(1)P与椭圆的顶点不重合,过P作圆
的两条切线,切点分别为E,F,直线EF与x轴、y轴分别交于点M,N.求证:
为定值;
(2)若
,过P的两条直线交C于A,B两点,两直线PA,PB的斜率之和为0,求直线AB的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddab7b8aa22e1ba4c59da7dc04ac9e2.png)
(1)P与椭圆的顶点不重合,过P作圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2de7abc1c27897e27c4e3086f2bb6d8f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26454b354884f8b9d63910d5dc72e1cc.png)
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名校
解题方法
5 . 已知椭圆
的左,右顶点分别为A,B,且椭圆C的离心率为
,点P是椭圆C上的一点,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c29c3bfdae2d4fbe8a8deaa572a2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed9041fe53ac45ac131ec97216efc527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a016bd561e8a5e9a28eb0833ba16c570.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-12-15更新
|
362次组卷
|
5卷引用:山西省晋城市第二中学校2022-2023学年高二上学期12月月考数学试题
6 . 如图,已知椭圆
,过椭圆
上第一象限的点
作椭圆的切线与
轴相交于
点,
是坐标原点,作
于
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53074dccec1c5d95c57e49a2fbfc1f7b.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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7a933dd7affa1d7542c62449ab99f00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2562727c414103b1d3f71f5205ab0b96.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/0b68cd11-68a0-4bbf-922c-7c8aac068bd3.png?resizew=208)
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2022高三·全国·专题练习
解题方法
7 . 已知椭圆
,直线l不过原点O且不平行于坐标轴,l与C有两个交点A,B,线段AB的中点为M.;证明:直线OM的斜率与l的斜率的乘积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7493b33b98f6d14ccdb2e738337697.png)
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8 . 已知:点
是椭圆
上任意一点(不与左右顶点重合),则点
与椭圆左右顶点连线的斜率乘积为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad7451b947d1adea22bc04070efdd2b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-10-25更新
|
339次组卷
|
2卷引用:江苏省徐州市铜山区2021-2022学年高二上学期期中数学试题
9 . 已知
是椭圆
上关于原点对称的两个点,点
在椭圆上.当
和
斜率存在时,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/422935d85056bc2fa6d4d50d034f62eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25c1b8686a5cb1530cbbb16ba60de9b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/cc157c66eef6affd86e48432176c4240.png)
![](https://img.xkw.com/dksih/QBM/2022/7/19/3026156868280320/3026627907878912/STEM/4e1ba9f285c2440698c63edae32951f0.png?resizew=174)
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10 . 在平面直角坐标系xOy中,已知椭圆
的左,右顶点分别为A,B,过点M(1,0)作直线l交椭圆于C,D两点,若直线AD,BC的斜率分别为k1,k2.求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/31/e35691ba-77d9-4707-8063-d561c4a54f59.png?resizew=209)
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