1 . 已知离心率为
的椭圆
经过抛物线
的焦点
,斜率为1的直线
经过
且与椭圆交于
两点.
(1)求
面积;
(2)动直线
与椭圆有且仅有一个交点,且与直线
分别交于
两点,
为椭圆的右焦点,证明
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f663b1f65678d7a4706da3d0727be4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d213f131f206f5f3520860de56690.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/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9924d2204a81ee287433057733a7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264fe111254a9236289bff05c4b7a01d.png)
您最近一年使用:0次
名校
2 . 已知椭圆
:
,
,
分别是椭圆短轴的上下两个端点,
是椭圆的左焦点,P是椭圆上异于点
,
的点,若
的边长为4的等边三角形.
写出椭圆的标准方程;
当直线
的一个方向向量是
时,求以
为直径的圆的标准方程;
设点R满足:
,
,求证:
与
的面积之比为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ed513f56811aa1d314514c5c10d90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef3c9dd64ecdf6d1fc3ab081aeb6a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09a8ac969e5cec3be6abf4ff44c692e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5ed513f56811aa1d314514c5c10d90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ef3c9dd64ecdf6d1fc3ab081aeb6a23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa117b0621fb0e843929b033a4c09814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f670b461d9b13df3932d0b0eeaea1f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c1bc582e15c8ae375017eff356fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f670b461d9b13df3932d0b0eeaea1f22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/372ba3183665678900fbed833aabb3c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9763e9bc0e618b3a6338254410a058c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e25e267418280b37e7d2f0bef11b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e9be82ad7b51f39e8058452b0e87b67.png)
您最近一年使用:0次
2019-11-08更新
|
463次组卷
|
6卷引用:2019年上海市崇明区高三上学期期末(一模)数学试题
2019年上海市崇明区高三上学期期末(一模)数学试题2020届湖南省长沙市明达中学高三(高复部)第二次模拟考试理科数学试题(已下线)专题05 平面解析几何-2020年高三数学(理)3-4月模拟试题汇编上海市华东师范大学第三附属中学2019-2020学年高二上学期12月月考数学试题(已下线)专题02圆锥曲线全章复习攻略--高二期末考点大串讲(沪教版2020选修一)(已下线)专题02 圆锥曲线--高二期末考点大串讲(沪教版2020选修)
名校
解题方法
3 . 已知椭圆
离心率为
,四个顶点构成的四边形的面积是4.
(1)求椭圆C的标准方程;
(2)若直线
与椭圆C交于P,Q均在第一象限,直线OP,OQ的斜率分别为
,
,且
(其中O为坐标原点).证明:直线l的斜率k为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.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/a7e9c9c51562c58d7347a4c7f17f47b1.png)
您最近一年使用:0次
2020-02-21更新
|
439次组卷
|
3卷引用:2019届重庆市合川瑞山中学高三下学期模拟训练(理)数学试题
2019届重庆市合川瑞山中学高三下学期模拟训练(理)数学试题2019届湖北省宜昌市第一中学高三模拟训练(三)数学(理)试题(已下线)第2章《圆锥曲线与方程》章节复习巩固(基础练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)
4 . 椭圆
:
的长轴长为4,离心率为
.
(1)求椭圆
的方程;
(2)若直线
:
交椭圆
于
,
两点,点
在椭圆
上,且不与
、
两点重合,直线
,
的斜率分别为
,
.求证:
,
之积为定值.
![](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/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac02a054bd0771a56987af33454baaea.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/ac047e91852b91af639feec23a9598b2.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/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e029cc1f7d07eeb136bd3946a7eb23e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32410867843f1a7ef11410da8f3f8dab.png)
您最近一年使用:0次
2019-04-13更新
|
568次组卷
|
2卷引用:【校级联考】四川省教考联盟2019届高三第三次诊断性考试数学(文)试题
名校
5 . 已知椭圆
:
的离心率为
,点
,
,
分别是椭圆
的左、右焦点,
为等腰三角形.
(Ⅰ)求椭圆
的方程;
(Ⅱ)过左焦点
作直线
交椭圆于
两点,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
,另一条过
的直线
交椭圆于
两点(不与
重合),且
点不与点
重合. 过
作
轴的垂线分别交直线
,
于
,
.
①求
点坐标; ②求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ae9e32c708885e635a73e4baa7b060.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/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9df1061c3ba5151ba2f7359acaf356.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(Ⅱ)过左焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.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/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8a4a42e72592e26494de97efdf27323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9044e6e52e7783a8c91876a8eac672.png)
您最近一年使用:0次
2019-04-03更新
|
544次组卷
|
4卷引用:【校级联考】天津市十二重点中学2019届高三下学期毕业班联考(一)数学(理)试题
【校级联考】天津市十二重点中学2019届高三下学期毕业班联考(一)数学(理)试题2020届江苏省南通市如皋中学高三创新班下学期4月模拟考试数学试题天津市第十四中学2021届高三下学期开学考试数学试题(已下线)第三章 圆锥曲线与方程(提分小卷)-【单元测试】2021-2022学年高二数学尖子生选拔卷(苏教版2019选择性必修第一册)
名校
6 . 已知椭圆
的右焦点为
,过点
且斜率为
的直线
与椭圆
交于
两点,线段
的中点为
为坐标原点.
(1)证明:点
在
轴的右侧;
(2)设线段
的垂直平分线与
轴、
轴分别相交于点
.若
与
的面积相等,求直线
的斜率
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2261c662b3e3f6bccc8ddeb5a61b1175.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/2799abb64fd7bfce9dfa7228aa460564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811ddb62dded70f279710ae6c0fdbb80.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/da8255e035cfd3c2e84f10b236b6fd97.png)
(1)证明:点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(2)设线段
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f43dd27150098f6dfabfdac92da27e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac83f9aad1493bac1fdd2d240cbfa10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2020-01-13更新
|
620次组卷
|
2卷引用:北京市西城区2019-2020学年高三上学期期末数学试题
7 . 已知曲线C:
(m∈R)
(1) 若曲线C是焦点在x轴点上的椭圆,求m的取值范围;
(2) 设m=4,曲线c与y轴的交点为A,B(点A位于点B的上方),直线y=kx+4与曲线c交于不同的两点M、N,直线y=1与直线BM交于点G.求证:A,G,N三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cd32a789948a37088dff2891a21eff.png)
(1) 若曲线C是焦点在x轴点上的椭圆,求m的取值范围;
(2) 设m=4,曲线c与y轴的交点为A,B(点A位于点B的上方),直线y=kx+4与曲线c交于不同的两点M、N,直线y=1与直线BM交于点G.求证:A,G,N三点共线.
您最近一年使用:0次
2019-01-30更新
|
2942次组卷
|
12卷引用:2012年全国普通高等学校招生统一考试理科数学(北京卷)
2012年全国普通高等学校招生统一考试理科数学(北京卷)(已下线)2014届高考数学总复习考点引领+技巧点拨第九章第7课时练习卷陕西省西安市重点高中2021-2022学年高三上学期第一次考试理科数学试题甘肃省天水市第一中学2021-2022学年高三上学期第一次考试 数学(理科)试题北京市中央民族大学附属中学2022届高三下学期三模数学试题北京名校2023届高三一轮总复习 第7章 解析几何 7.8 直线与椭圆的位置关系(2)(已下线)第五篇 向量与几何 专题9 完全四点形的调和性 微点1 完全四点形的调和性(已下线)第五篇 向量与几何 专题11 圆锥曲线中的蝴蝶定理 微点1 圆锥曲线中的蝴蝶定理人教B版(2019) 选修第一册 学习帮手 第二章 2.8 直线与圆锥曲线的位置关系北京市第五十七中学2019-2020学年高二上学期期中考试数学试题湖北省武汉中学2021-2022学年高二上学期12月月考数学试题内蒙古包头市第四中学2020-2021学年高二下学期4月月考数学(理)试题
名校
8 . 已知椭圆
的两个焦点分别为
,长轴长为
.
(Ⅰ)求椭圆
的标准方程及离心率;
(Ⅱ)过点
的直线
与椭圆
交于
,
两点,若点
满足
,求证:由点
构成的曲线
关于直线
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781b183ab353b9ec98f0f57b722f546e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6a27a9d5d345f1e04020bfea2770ac.png)
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2019-06-04更新
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10卷引用:【区级联考】北京市通州区2019届高三4月第一次模拟考试数学(理科)试题
【区级联考】北京市通州区2019届高三4月第一次模拟考试数学(理科)试题2019年12月四川省成都市双流区棠湖中学一模数学(理)试题2019年12月四川省成都市双流区棠湖中学一模数学(文)试题(已下线)2020届高三12月第01期(考点08)(文科)-《新题速递·数学》(已下线)2020届高三12月第01期(考点08)(理科)-《新题速递·数学》2020届四川省宜宾市第四中学校高三上学期期末考试数学(理)试题2020届四川省宜宾市第四中学校高三上学期期末考试数学(文)试题(已下线)专题06 平面向量在解析几何中的应用(第五篇)-2020高考数学压轴题命题区间探究与突破(已下线)专题05 平面解析几何——2020年高考真题和模拟题文科数学分项汇编(已下线)专题1 解析几何与平面向量
名校
9 . 已知椭圆:
的左、右点分别为
点
在椭圆上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5de8b06bb56050c0b063c1cac74b85.png)
(1)求椭圆
的方程;
(2)过点(1,0)作斜率为
的直线
交椭圆
于M、N两点,若
求直线
的方程;
(3)点P、Q为椭圆上的两个动点,
为坐标原点,若直线
的斜率之积为
求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e31a3d0d39c91ad459865a4a9949fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e811703a9018e3ba06c1b80b998584c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b248768fc289c31c6212ea3fcf5094be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5de8b06bb56050c0b063c1cac74b85.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)过点(1,0)作斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb08401a98d8aaa79c9ce9a87b2afa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)点P、Q为椭圆上的两个动点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ae22fefcd22e8e61d8c05ca3b056d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac3a07939e0a7c86c017fa033176e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
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2019-08-16更新
|
918次组卷
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2卷引用:上海市青浦中学2019-2020学年高三上学期9月月考数学试题
10 . 已知椭圆
的左右焦点分别为
,其焦距为
,点
在椭圆
上,
,直线
的斜率为
(
为半焦距)·
(1)求椭圆
的方程;
(2)设圆
的切线
交椭圆
于
两点(
为坐标原点),求证:
;
(3)在(2)的条件下,求
的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5379ca02a94af1e74e5e00e38ba6e327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a649229b6afa314d5cb7d9a66115734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f4faed99e8f7100584d50eedea8c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b2fe2eaadae4df6247a131a1cddb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(3)在(2)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24c95fe581befd56c3bcc70e88b726.png)
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2019-03-26更新
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453次组卷
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3卷引用:【市级联考】湖北省八市(黄石市.仙桃市.天门市.潜江市.随州市.鄂州市.咸宁市.黄冈市)2019届高三3月联合考试理科数学试题