名校
1 . 已知椭圆
的离心率
分别是椭圆的左、右顶点,点
是椭圆上的一点,直线
的倾斜角分别为
,满足
,则直线
的斜率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9350ab60d99225196599185b748d0823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d4a832771ba45d407f31000c8fcf37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc14778010a33f90902ff17b1ec0ac73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82952167162ea55f91e521c5caaa85e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
您最近一年使用:0次
名校
2 . 已知椭圆
离心率的最小值为
,其左、右焦点分别为
,若P是椭圆上位于y轴右侧的一点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e1aa8ad8272eac52b680547e47bf00.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31876698721a199c7c53c6b320aa86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e1aa8ad8272eac52b680547e47bf00.png)
您最近一年使用:0次
2020-08-10更新
|
368次组卷
|
5卷引用:广西钦州市第一中学2021-2022学年高二上学期期中考试数学(理)试题
广西钦州市第一中学2021-2022学年高二上学期期中考试数学(理)试题广西钦州市第一中学2021-2022学年高二上学期期中考试数学(文)试题人教B版(2019) 选择性必修第一册 过关斩将 第二章 平面解析几何 专题强化练6 椭圆的综合问题(已下线)3.1.2 椭圆的简单几何性质(2)-2020-2021学年高二数学课时同步练(人教A版选择性必修第一册)(已下线)3.1.2 (分层练)椭圆的简单几何性质-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)
名校
3 . 已知
:实数
使得焦点在
轴上的椭圆
的离心率
.
(1)求实数
的取值范围;
(2)若
,
是q的充分不必要条件,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f2f4e27d0b5e39a967035a75215dce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33edfdc5a31670c582014588f7782361.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56c202ed4b20be0fb849cb9b1a8c3525.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次
4 . 已知椭圆
经过函数
图象的对称中心,若椭圆C的离心率
,则C的长轴长的取值范围是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256c11dcaf447d6cada0dc55293a5365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62f17d191245c4df78f536359640b915.png)
您最近一年使用:0次
5 . 已知椭圆mx2+5y2=5m(m>0)的离心率为
,求m=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdef613db8c80d0305fb584f0df4e7da.png)
您最近一年使用:0次
2019-12-22更新
|
396次组卷
|
2卷引用:新疆维吾尔自治区和田地区2019-2020学年高二上学期期中数学试题
名校
解题方法
6 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2763a18fcd101f39758f54da1331eda4.png)
与双曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9767d635bfd3452511dd232e22aa43e.png)
的焦点相同,右焦点为
.若
与
的离心率分别为
和
,点
为
的右支与
的一个交点,且
,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2763a18fcd101f39758f54da1331eda4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2cec57b5733f713956cbb0684ce4622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9767d635bfd3452511dd232e22aa43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a493086663ca056c6e3aa99d60839ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d599cb4a589f90b0205f24c2e1fa021e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773d8445183023b3c46c90f60862be9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d4f00798c1e22e06bfd0dd876ce43f.png)
A.0 | B.4 | C.8 | D.12 |
您最近一年使用:0次
名校
7 . 若椭圆
的离心率为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72cc5b9e094feeacb13c0a9fde5a4b4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次
2020-12-11更新
|
235次组卷
|
4卷引用:海南省海口市海南中学2020-2021学年高二上学期期中考试数学试题
名校
8 . 下列命题中正确的是( )
A.对于实数a,b,c,若![]() ![]() |
B.对于命题p:存在![]() ![]() ![]() ![]() ![]() |
C.“数列![]() ![]() |
D.已知椭圆![]() ![]() ![]() |
您最近一年使用:0次
2020-11-28更新
|
267次组卷
|
3卷引用:江苏省宿迁市沭阳如东中学2020-2021学年高二上学期期中数学试题
名校
9 . 已知椭圆
的离心率
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea0399de4659dca7ca95ae7eda823ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-10-14更新
|
1405次组卷
|
6卷引用:天津市和平区耀华嘉诚国际中学2021-2022学年高二上学期期中数学试题
名校
10 . 已知
,命题
:
,命题
:椭圆
的离心率
满足
.
(1)若
是真命题,求实数
的取值范围;
(2)若
是
的充分不必要条件,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99972c5abbaa5efd9643065ecf5af52c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dae6629e0dbf18af625cb804874afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec7cb7eb69c9788d1122e3b59779e405.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-03-31更新
|
229次组卷
|
2卷引用:浙江省宁波中学2019-2020学年高二上学期期中数学试题