已知函数
.
(1)根据定义证明:函数
在区间
上单调递减;
(2)若实数a满足
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a5d169c9c32902d3df2ab046ca2a80.png)
(1)根据定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f749d8424910c767571310deff8d46e2.png)
(2)若实数a满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082617fa6c1c6a014f900c41647f7eaa.png)
更新时间:2023-02-19 18:58:12
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