名校
解题方法
1 . 已知命题
,命题
,若命题
且
是真命题,则实数
的取值范围是______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8003266a7cd483cdecb0ddf8d86c905b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53152f2c0a9324d7bbc17f77617c4494.png)
![](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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
552次组卷
|
4卷引用:【全国百强校】江苏省盐城中学2017-2018学年高二第二学期期中考试数学(理)试题
13-14高三上·上海长宁·阶段练习
2 . 函数
在
上
恒成立,则
的取值范围是____ .
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572562302566400/1572562308161536/STEM/cb4c601a58b744b19ff4d8152d93231f.png?resizew=114)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572562302566400/1572562308161536/STEM/c5e8b7da7ff44d76ab01d8f54c58f413.png?resizew=69)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572562302566400/1572562308161536/STEM/c5f4753000de4422ba5112dc8751ead2.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572562302566400/1572562308161536/STEM/0026f6843074498a9f2cf9b682ab200e.png?resizew=13)
您最近一年使用:0次