名校
1 . 已知
的周长为
.
(1)求点
的轨迹方程;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71d3eae4ff48d117dab9d669a399f321.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c4559d27e3905980d1a4f1856f07de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-11-11更新
|
579次组卷
|
3卷引用:四川省成都市成都市第七中学2023-2024学年高二上学期期中数学试题
名校
解题方法
2 . 已知椭圆方程为
,长轴为
,过椭圆上一点
向
轴作垂线,垂足为
,若
,则该椭圆的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473913c0887bb64d386f4c02f1853452.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd78b4eede1598b21230a0a24005b46.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知点
为椭圆
上的任意一点,
到焦点的距离最大值为
,最小值为
,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab46ea0cba2d06283fae3d864a2329e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47cfe4e08c06bde245e58aa22485044c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba0ed7bfe8dd774cfa5d432f108d88a3.png)
您最近一年使用:0次
2023-11-11更新
|
719次组卷
|
5卷引用:四川省资阳市乐至中学2023-2024学年高二上学期期中数学试题
四川省资阳市乐至中学2023-2024学年高二上学期期中数学试题广西梧州市新高考教研联盟2023-2024学年高二上学期期中考试数学试题新疆维吾尔自治区昌吉市第一中学2023-2024学年高二上学期12月月考数学试题江苏省泰州市泰兴中学2023-2024学年高二上学期阶段测试(三)数学试题(已下线)2.2.1 椭圆的标准方程(十三大题型)(分层练习)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
4 . 动点P到定点
的距离和它到直线l:
的距离的比是常数
,设点P的轨迹为曲线C.
(1)求曲线C的方程;
(2)已知O为坐标原点,与x轴不垂直的直线l与曲线C交于A,B两点,若曲线C上存在点P,使得四边形
为平行四边形,证明:
的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求曲线C的方程;
(2)已知O为坐标原点,与x轴不垂直的直线l与曲线C交于A,B两点,若曲线C上存在点P,使得四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2023-11-11更新
|
400次组卷
|
4卷引用:四川省雅安市多校联考2023-2024学年高二上学期期中数学试题
名校
解题方法
5 . 已知曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
,点
,
,
,P为曲线
上的一个动点,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dde02a4bc2031a84f3247001f1e45d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9d55173f26afdf0e37462b556a605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d6f746c2355072d914591bf60c3801.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f25553c981506162acd2c209784f2e71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() |
B.![]() ![]() |
C.存在点P,使得![]() |
D.![]() |
您最近一年使用:0次
2023-11-11更新
|
566次组卷
|
2卷引用:四川省成都市嘉祥教育集团2023-2024学年高二上学期期中考试数学试题
名校
6 . 如图,已知
是椭圆C:
左右焦点,过
的直线
与椭圆C交于A,B两点,且
的周长为8.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/15ae7cda-28bf-48ac-ad95-6b7ecb465669.png?resizew=172)
(1)求椭圆C的方程;
(2)若椭圆C的长轴是DE,直线AD,BE的斜率分别是k1,k2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0069e73aa8522bd8853e2945b277b534.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/8/15ae7cda-28bf-48ac-ad95-6b7ecb465669.png?resizew=172)
(1)求椭圆C的方程;
(2)若椭圆C的长轴是DE,直线AD,BE的斜率分别是k1,k2,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次
名校
7 . 椭圆C:
一个焦点的坐标是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49358e49ae68a92444b5e732a79b28b4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 已知椭圆C:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的离心率为
,斜率为正的直线l与椭圆C交于A,B两点,与x轴、y轴分别交于P,Q两点,点的位置如图所示,且
,则直线l的斜率为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059d02ae074c7c2f7dfde8058dfa55ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091b5c26422d931f9c42191e67d482de.png)
您最近一年使用:0次
9 . 已知点
,点
,点
在直线
上,若满足等式
的点
有两个,则实数
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98b2cc0d2f6d3eee9a33db83e0c0830d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62536928039a842932a443b2f6aa86e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8948ec2093ccaa531680e0aec5d063e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b24babe6723d040776829651ab652f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
解题方法
10 . 已知椭圆
:
的离心率为
,
,
分别为
的左、右焦点,
为
上一点,若
的面积等于2,且
,则
的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002ed1ebb2cb936e10ab478789f91c7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3caa5ccd0b60afb164adad95556405.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-11-10更新
|
1202次组卷
|
4卷引用:四川省遂宁市射洪中学2023-2024学年高二上学期期中质量检测数学试题
四川省遂宁市射洪中学2023-2024学年高二上学期期中质量检测数学试题广西壮族自治区玉林市2023-2024学年高二上学期11月期中考试数学试题广西示范性高中2023-2024学年高二上学期期中联合调研测试数学试题(已下线)专题12 椭圆的定义及其应用+焦点三角形(期末选择题12)-2023-2024学年高二数学上学期期末题型秒杀技巧及专项练习(人教A版2019)