名校
1 . 已知函数
,若对任意的
,不等式
恒成立,则实数
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070ffabce6f645039ff94231ebf0bb6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80315917e7f564864105cd4c7e95fb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
2 . 设函数
.
(1)解不等式
;
(2)求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c19778e999ac9927ee65b88d4439abac.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
2018-10-11更新
|
579次组卷
|
3卷引用:【全国百强校】山西省长治市第二中学2017-2018学年高二下学期期末考试数学(文)试题
3 . 定义
,
,函数
,
的值域是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9e0f7fd210c8ebc45692f5be03db7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77959c58d888bdbb336c9c4d10184d0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52b64895fe2e43ec36052ae6c3beb9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc52adf42f47b3c726737ae4f4971dda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fab11f38ab8593932082ec4d9c8c91f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
您最近一年使用:0次