名校
1 . 设
,且
,“
”是“
”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3fb2c103245ff17d43ed222a16e6127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcf268fb9d95f033c196f72ca517351.png)
A.充分而不必要条件 | B.必要而不充分条件 | C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2017-12-17更新
|
547次组卷
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10卷引用:2015-2016学年重庆八中高二暑期阶段测十数学(文)试卷
2015-2016学年重庆八中高二暑期阶段测十数学(文)试卷2016届湖北荆门龙泉中学高三5月月考文科数学试卷2015-2016学年四川成都石室中学高二理下期中数学试卷2015-2016学年四川成都石室中学高二文下期中数学试卷2017届福建福州外国语学校高三适应性考试四数学(文)试卷福建省莆田市第二十四中学2018届高三上学期第二次月考(12月)数学(文)试题四川省成都市石室中学2018-2019学年高二下学期期中考试数学(理)试题天津市静文高级中学2022-2023学年高三上学期期末数学试题(已下线)北京市第四中学2024届高三上学期10月月考数学试题(已下线)北京市第四中学2024届高三上学期10月月考数学试题变式题6-10
2 . 已知函数
.
(1)当
时,求函数
的单调区间;
(2)当
时,若函数
有两个极值点
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6607dff40716eb9ea57c37d3d823e7bc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e500ffa9a019dc4ef252da97c5f5601a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02657ab1c65825868e49acb108fdd862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb804ad924977da4e759755be2b39025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-04更新
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1102次组卷
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2卷引用:2015-2016学年重庆八中高二暑期阶段测十数学(文)试卷
3 . 已知椭圆
与
轴交于
两点,
为椭圆
的左焦点,且
是边长为2等边三角形.
(1)求椭圆
的方程;
(2)设直线
与椭圆
交于
两点,点
关于
轴的对称点为
(
与
不重合),则直线
与
轴是否交于一个定点?若是,请写出定点坐标,并证明你的结论;若不是,请说明理由 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1497ffc1b18295b5f12c4a566a3285e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d468be20b4d43f5de75416de20e8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eea967ddc26ab20232bfdc970450312.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303094682b317daea83be885d1c7ff4b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea68142955809f9f40b15e3fa0f5bdd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
4 . 如图,在边长为
的正方形组成的网格中,有椭圆
,它们的离心率分别为
,则
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573045552701440/1573045558812672/STEM/4c4d94ed-b340-4712-ace8-ccd298ced2a5.png?resizew=241)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a809ca7fdd64561639655b464bdbc1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5916c998f2252c850c78851abc0e29dc.png)
![](https://img.xkw.com/dksih/QBM/2016/9/28/1573045552701440/1573045558812672/STEM/4c4d94ed-b340-4712-ace8-ccd298ced2a5.png?resizew=241)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
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536次组卷
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2卷引用:2015-2016学年重庆八中高二暑期阶段测十数学(文)试卷