名校
1 . 对任意
,函数
表示
,
,
中较大者,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf56a3016537f8cd75087c0bf1c0fda3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2935604cca9572eebf3a29066599fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e592d76fd3ef30e964393a1eff2624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2019-11-05更新
|
318次组卷
|
2卷引用:江西省宜春市万载县万载中学2019-2020学年高一上学期10月月考数学试题
名校
2 . 给出定义:若
(其中
为整数),则
叫做离实数
最近的整数,记作
.在此基础上给出下列关于函数
引的四个结论:
①函数
的定义域为
,值域为
;②函数
在
上是增函数:
③函数
的图象关于直线
对称;④函数
是偶函数.
其中所有正确的结论的序号是_____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b82ec65b678aef2b8ae9f2b143d0c78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/5a6b9b824412f889341ea7946b7ff3ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f154f4e8b1043aeaeaa842f8b6a23b2a.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86644d5b1157b35cf7b825f108d4c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/497199a00f177af4c593e0e715be97f1.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5342948abd10a5ed4829abdc097fec64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
其中所有正确的结论的序号是
您最近一年使用:0次
2019-02-18更新
|
320次组卷
|
2卷引用:【全国百强校】江西省宜春市高安中学2018-2019学年高一上学期期中考试数学试题