1 . 已知椭圆
的左、右焦点分别为
、
,过
且垂直于
轴的直线与
交于
两点,且
的坐标为
.
(1)求椭圆
的方程;
(1)过
作与直线
不重合的直线
与
相交于
两点,若直线
和直线
相交于点
,求证:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/a3fb78c5f885034612c0e030b920143d.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c7e3739bbfda13bc1da8c731adf7bf9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.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/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
您最近一年使用:0次
2021-01-14更新
|
525次组卷
|
7卷引用:江西省南昌市第二中学2023-2024学年高二上学期期中考试数学试卷
名校
解题方法
2 . 椭圆
:
的左、右焦点分别为
,
,点
在椭圆上且同时满足:
①
是等腰三角形;
②
是钝角三角形;
③线段
为
的腰;
④椭圆
上恰好有4个不同的点
.
则椭圆
的离心率的取值范围是______ .
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fbc9b62f2e82af009bd2f4587969fb.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fbc9b62f2e82af009bd2f4587969fb.png)
③线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fbc9b62f2e82af009bd2f4587969fb.png)
④椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
则椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
3 . 已知椭圆
的左、右两个焦点分别为
,直线
与
交于A,B两点,
轴,垂足为
,直线BE与
的另一个交点为
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2242ca20bd7ab3d41b128e10a4071521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b343d77ee4dced82ecc479206c42977d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8178c63d125ee6235feeb2fc70d02745.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/dad2a36927223bd70f426ba06aea4b45.png)
A.四边形![]() | B.![]() |
C.直线BE的斜率为![]() | D.![]() |
您最近一年使用:0次
2020-11-03更新
|
1373次组卷
|
5卷引用:福建省厦门第一中学2020-2021学年度高二数学12月月考试题
福建省厦门第一中学2020-2021学年度高二数学12月月考试题重庆市南开中学2020-2021学年高二下学期3月月考数学试题重庆市第八中学2021届高三上学期高考适应性月考(二)数学试题(已下线)黄金卷06-【赢在高考·黄金20卷】备战2021高考数学全真模拟卷(新高考专用)(已下线)专题19 椭圆(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)
名校
解题方法
4 . 如图,椭圆
的方程为
,
,
分别为椭圆的左、右焦点,点
、
是椭圆上位于
轴上方的两点,且
,则
的取值范围为( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/f9f00087-461b-4489-81f2-5b3f0bf32371.png?resizew=174)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a9dc208e4e9a1d015745bba83e45a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a2ef16d2ad1f471f7a1956420ca73f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/f9f00087-461b-4489-81f2-5b3f0bf32371.png?resizew=174)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-07-25更新
|
1308次组卷
|
5卷引用:河南省豫北名校2020-2021学年高二上学期12月质量检测数学(理)试题
河南省豫北名校2020-2021学年高二上学期12月质量检测数学(理)试题广西崇左高级中学2020-2021学年高二上学期期末模拟数学(理)试题(已下线)3.1 椭圆的几何性质-2021-2022学年高二数学同步培优训练系列(苏教版2019选择性必修第一册) 金科大联考2020届高三5月质量检测数学(理科)试题金科大联考2020届高三5月质量检测数学(文科)试题
名校
解题方法
5 . 在平面直角坐标系中,A、B分别为椭圆
的上、下顶点,若动直线l过点
,且与椭圆
相交于C、D两个不同点(直线l与y轴不重合,且C、D两点在y轴右侧,C在D的上方),直线AD与BC相交于点Q.
![](https://img.xkw.com/dksih/QBM/2020/5/20/2467035959590912/2467448087543808/STEM/c53dfd0f5f1540fc8d091d46f5ae0ccb.png?resizew=216)
(1)设
的两焦点为
、
,求
的值;
(2)若
,且
,求点Q的横坐标;
(3)是否存在这样的点P,使得点Q的纵坐标恒为
?若存在,求出点P的坐标,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e759f106cb7761ca3128802223a77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf5a3888a4c5c93101b11527141ac48a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://img.xkw.com/dksih/QBM/2020/5/20/2467035959590912/2467448087543808/STEM/c53dfd0f5f1540fc8d091d46f5ae0ccb.png?resizew=216)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.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/62180fb2b68724b7b0f4f8337496c12a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/730c2cc091620cee6bb7ac099ea261e2.png)
(3)是否存在这样的点P,使得点Q的纵坐标恒为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
您最近一年使用:0次
2020-05-21更新
|
623次组卷
|
5卷引用:四川省攀枝花市第七高级中学校2021-2022学年高二上学期半期检测数学(理)试题
四川省攀枝花市第七高级中学校2021-2022学年高二上学期半期检测数学(理)试题2020届上海市闵行区高三二模数学试题(已下线)热点04 平面向量、复数-2021年高考数学【热点·重点·难点】专练(上海专用)上海市大同中学2022届高三下学期开学考试数学试题(已下线)第13讲 椭圆 - 1
解题方法
6 . 已知椭圆
:
与抛物线
有公共的焦点
,且公共弦长为
,
(1)求
,
的值.
(2)过
的直线
交
于
,
两点,交
于
,
两点,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/160891675d407ffc65c14ab714dc761e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)过
![](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/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.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/d6bef4c5f00c8fbddbd021ab1d5b8fb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
名校
7 . 已知
为椭圆
上一点,
为椭圆长轴上一点,
为坐标原点,有下列结论:①存在点
,
,使得
为等边三角形;②不存在点
,
,使得
为等边三角形;③存在点
,
,使得
;④不存在点
,
,使得
.其中,所有正确结论的序号是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800eca4e8d1c3f4792a1d3aba6f3b481.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/800eca4e8d1c3f4792a1d3aba6f3b481.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/59787c78163fde07da77755b07b3053f.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/59787c78163fde07da77755b07b3053f.png)
A.①④ | B.①③ | C.②④ | D.②③ |
您最近一年使用:0次
2020-03-02更新
|
871次组卷
|
3卷引用:北京市第二中学2018-2019学年高二上学期期末考试数学试题
北京市第二中学2018-2019学年高二上学期期末考试数学试题四川省成都市树德中学2020-2021学年高二上学期12月月考数(文)学试题(已下线)期末重难点突破专题02-【尖子生专用】2021-2022学年高二数学考点培优训练(人教A版2019选择性必修第一册)
名校
8 . 如图,两个椭圆
内部重叠区域的边界记为曲线C,P是曲线C上任意一点,给出下列三个判断:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/425950c3-4d8e-4a78-aa8c-c0aaf79347e0.png?resizew=160)
①P到
四点的距离之和为定值;
②曲线C关于直线
均对称;
③曲线C所围成区域面积必小于36.
上述判断中所有正确命题的序号为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4335c3c81d09fa75b66d0f24e8085c3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/425950c3-4d8e-4a78-aa8c-c0aaf79347e0.png?resizew=160)
①P到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ea969924699b599326f4f025b9e856.png)
②曲线C关于直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2816c1cb72ed019c7a062bd59aab4af9.png)
③曲线C所围成区域面积必小于36.
上述判断中所有正确命题的序号为
您最近一年使用:0次
2019-12-12更新
|
668次组卷
|
4卷引用:上海市向明中学2018-2019学年高二上学期12月月考数学试题
9 . 椭圆
:
与双曲线
:
焦点相同,
为左焦点,曲线
与
在第一象限、第三象限的交点分别为
、
,且
,则当这两条曲线的离心率之积最小时,双曲线有一条渐近线的方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29eb5ce3f09c49dfa489a3b0bd5beafb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.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/a0b1af64e0af8f34b1bf80be6f4828ea.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-01-14更新
|
1482次组卷
|
3卷引用:福建省泉州市永春一中2018-2019学年高二上学期期末数学(文)试题
10 . 如图,椭圆
(
)的两焦点为
,
,长轴为
,短轴为
,若以
为直径的圆内切于菱形
,切点分别为
,
,
,
,则菱形
的面积
与矩形
的面积
的比值为( )
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2019-01-09更新
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1188次组卷
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3卷引用:【市级联考】辽宁省辽阳市2018-2019学年高二上学期期末考试数学(文)试题