解题方法
1 . 写出一个同时满足下列条件的函数
关系式:______ ;
①
;②
为周期函数且最小正周期为
;③
是
上的偶函数;④
是在
上的增函数;⑤
的最大值与最小值差不小于4.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53dc2d7621632caad6ad4c0818fd49a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a9d4db7d7e600a76b7fe77ff6f3b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf38ccd021e041ec4afee633c0249b86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2 . 求函数
的单调递减区间及函数最大值与其相应的
的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd40350d13deb2d61e5c18d5c69f634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次