名校
解题方法
1 . 设函数
.
(1)解方程:
;
(2)令
,求
的值.
(3)若
是实数集
上的奇函数,且
对任意
实数恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0caed6ed26d78e195746f99c2ec88bb2.png)
(1)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b343e1056fd185100b130b3b5bd245d.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85e31d8893c43e747e9e7ba7219642fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab818082f29fe67fcc038b7b2e6ecac.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94946c1d1de586c2abf045b0b3462949.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f705c6ce74f9ff389d3bf481ad979b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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