名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048f0a2711874f93d4621d8ad9d6e4ad.png)
(1)若
,解不等式
.
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/048f0a2711874f93d4621d8ad9d6e4ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1bf0995f32a13d0a9e423f3e88ab271.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd18467feea8eb478f4669a32c2d57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-04-16更新
|
258次组卷
|
2卷引用:宁夏石嘴山市平罗中学2019-2020学年高二下学期复学学业成绩检测数学(理)试题
2 . 若不等式
成立的充分条件是
,则实数
的取值范围是__________ .
![](https://img.xkw.com/dksih/QBM/2016/10/27/1573098764943360/1573098771079168/STEM/d00b7e604a2846bcb6222258b1c89dfc.png?resizew=67)
![](https://img.xkw.com/dksih/QBM/2016/10/27/1573098764943360/1573098771079168/STEM/c782fdebfdae4294aff197c59422513f.png?resizew=63)
![](https://img.xkw.com/dksih/QBM/2016/10/27/1573098764943360/1573098771079168/STEM/322ff2378248479f8a9146494c4140a6.png?resizew=13)
您最近一年使用:0次
2016-12-04更新
|
378次组卷
|
4卷引用:2015-2016学年宁夏银川一中高二上学期期中理科数学试卷