名校
解题方法
1 . 已知
是定义在R上的偶函数,当
时,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/86472a39-5131-4a3f-bf92-e3df700fb8d8.png?resizew=211)
(1)求
的值;
(2)画出
简图;写出
的单调递增区间和值域(只需写出结果,不要解答过程);
(3)求
在R上的解析式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66062dbd4978a7bb2fb9b9aabb898af.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/4/86472a39-5131-4a3f-bf92-e3df700fb8d8.png?resizew=211)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2ba2f4907adcdfe1436e6ca055c227.png)
(2)画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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