名校
1 . 已知椭圆
:
,
,
为其左右焦点,离心率为
,
.
(1)求椭圆
的标准方程;
(2)设点
,点
在椭圆
上,过点
作椭圆
的切线
,斜率为
,
,
的斜率分别为
,
,则
是否是定值?若是,求出定值;若不是,请说明理由.
(3)设点
,点
在椭圆
上,点
在
的角分线上,求
的取值范围.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c37f7b5daa99a468d8943b49459730b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.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/060f4956a4bf2bb97597c845e0b322fb.png)
(3)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021bcc5ea186cd32c39b3d333b0f448c.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/fd1ca32fac5694537b56f9f528d2dae7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94fe48bf7af022ecbbe13833fdcc2c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2021-03-06更新
|
1444次组卷
|
4卷引用:浙江省宁波市北仑中学2021-2022学年高二上学期期中数学试题
2 . 如图,已知椭圆
的离心率为
,且过点
.
![](https://img.xkw.com/dksih/QBM/2021/3/2/2669448701665280/2671363543597056/STEM/a7abb234-c621-4bce-82b6-84f96b7d845a.png)
(1)求椭圆
的标准方程;
(2)过左焦点
且斜率为正的直线
与椭圆
交于
、
两点,过点
、
分别作与直线
垂直的直线,交
轴于
、
两点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.png)
![](https://img.xkw.com/dksih/QBM/2021/3/2/2669448701665280/2671363543597056/STEM/a7abb234-c621-4bce-82b6-84f96b7d845a.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过左焦点
![](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/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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/813d09b4c2e42f32377a45a0ec8b071a.png)
您最近一年使用:0次
3 . 已知椭圆方程为
,则其长轴长为________ ,焦点坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
您最近一年使用:0次
名校
4 . “
”是“曲线
表示椭圆”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d61f98f7418eda31a1d7c457e3841c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db040ac73e323a132ccac7bee4013fa3.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2021-03-02更新
|
4121次组卷
|
20卷引用:浙江省丽水市高中发展共同体2020-2021学年高二下学期2月第一次联合测试数学试题
浙江省丽水市高中发展共同体2020-2021学年高二下学期2月第一次联合测试数学试题(已下线)选择性必修第一册 数学全册检测题 A卷(基础过关)-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)广东省江门市2020-2021学年高二下学期期末数学试题(已下线)3.1 椭圆-2021-2022学年高二数学10分钟课前预习练(人教A版2019选择性必修第一册)湖北省荆门市钟祥市实验中学2020-2021学年高二下学期3月月考数学试题(已下线)选择性必修第一册 综合测试(基础)-2021-2022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)广东省广州市增城区增城中学2021-2022学年高二上学期第二阶段测试数学试题重庆市云阳县高阳中学2022-2023学年高二上学期期末数学试题河南省洛阳市2022-2023学年高二上学期期末考试理科数学试题河南省洛阳市2022-2023学年高二上学期期末考试数学(文科)试题河南省洛阳市2022-2023学年高二上学期期末考试文科数学试题(已下线)综合检测(基础篇)-2022-2023学年高二数学同步知识梳理+考点精讲精练(人教B版2019选择性必修第一册)第3章 椭圆方程及性质(培优卷)-【满分计划】2022-2023学年高二数学阶段性复习测试卷(苏教版2019选择性必修第一册)新疆维吾尔自治区塔城地区2022-2023学年高二下学期开学质量检测数学试题3.1.1 椭圆的标准方程(同步练习提高篇)福建省福州市第四十中学2022-2023学年高二下学期期末阶段练习数学试题人教A版(2019) 选修第一册 数学奇书 第三章 圆锥曲线的方程 3.1 椭圆 3.1.1 椭圆及其标准方程 第1课时 椭圆及其标准方程(一)陕西省商洛市柞水中学2023-2024学年高二上学期期中质量检测数学试题上海市宝山区2023-2024学年高二下学期期末教学质量监测数学试卷山西省大同市实验中学2023届高三上学期高考考前模拟(二)数学试题
名校
5 . 已知圆
:
(
)和
:
,动圆
与圆
内切,与圆
外切,
是
的内心,且
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b331c9a86821adada157cb0d6eb71b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6419f713570ae5f72743f8fda9237f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837fbc4862ae7c699199535d991234a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96d6c0b1e09f546c5ce77316daa8050f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0eeca6ffb7937275ad3e57910ed3a8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-03-01更新
|
770次组卷
|
5卷引用:第三章 (综合培优)圆锥曲线的方程 B卷-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)
第三章 (综合培优)圆锥曲线的方程 B卷-【双基双测】2021-2022学年高二数学同步单元AB卷(浙江专用)(人教A版2019选择性必修第一册)浙江省温州中学2021届高三下学期2月返校考试数学试题安徽省亳州市涡阳县育萃高级中学2020-2021学年高二下学期第一次月考数学(理)试题(已下线)第二章 直线和圆的方程(选拔卷)-【单元测试】2021-2022学年高二数学尖子生选拔卷(人教A版2019选择性必修第一册)(已下线)第三章 圆锥曲线的方程(单元重点综合测试)-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)
6 . 已知曲线
,( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a289546632308cc5a9244ba43c12fbd.png)
A.若E表示双曲线,则![]() | B.若![]() |
C.若E表示椭圆,则![]() | D.若![]() ![]() |
您最近一年使用:0次
7 . 在平面直角坐标系
中,已知椭圆
的四个顶点围成的四边形的面积为
,椭圆的左焦点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45349f54f6abc8d331556557255f024.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388766789632/STEM/57d1f4d7646349e9b8f520c315651e03.png?resizew=185)
(1)求椭圆的方程;
(2)
,是否存在斜率为
的直线l与椭圆相交于两点M,N,且
,若存在,求出直线l的方程,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45349f54f6abc8d331556557255f024.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388766789632/STEM/57d1f4d7646349e9b8f520c315651e03.png?resizew=185)
(1)求椭圆的方程;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9cb4b48bdfbb1aa677e5d8dcc7ad8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b485b62d004d52fb31d6ed99ccb7669.png)
您最近一年使用:0次
8 . 已知原命题是“若
,则曲线
是椭圆”.
(1)试写出原命题的逆命题、否命题、逆否命题,并判断所写命题的真假;
(2)若曲线
是焦点在
轴上的双曲线,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d364ffe09abd0f6022147d130c82dccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e32500972421f941c78967a4948921.png)
(1)试写出原命题的逆命题、否命题、逆否命题,并判断所写命题的真假;
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71e32500972421f941c78967a4948921.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
9 . 已知
,
是椭圆
的两个焦点,过
作直线
交
于
,
两点,若
,则
的面积为( )
![](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/f84abb97bf91e72c6130c46d9a53b962.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/895dc3dc3a6606ff487a4c4863e18509.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/6593380cf94529c14b8ce242924cb460.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8376a8a3dd42eaa0558501a3e2a2bdb4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
10 . 如图
是椭圆
的左、右焦点,
是椭圆上两点,满足
,若
,则直线
的斜率为( )
![](https://img.xkw.com/dksih/QBM/2021/1/31/2648077996539904/2650352524673024/STEM/4c7f2f77-9137-41cb-a489-f659ddba913f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8242a481ac3496ad559f6f3d1beba4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642b8d80093378b2ef57036c3ce5562c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://img.xkw.com/dksih/QBM/2021/1/31/2648077996539904/2650352524673024/STEM/4c7f2f77-9137-41cb-a489-f659ddba913f.png)
A.-1 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-02-03更新
|
375次组卷
|
2卷引用:浙江省舟山市2020-2021学年高二上学期期末数学试题