已知函数
对任意两个不相等的实数
,都满足不等式
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51590f7bda40f53e3c7be167381df7e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c532177b5d10addfd139b7d5919f31d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa10bae6ce6e91bf99c580d102947b46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-12-30 23:24:56
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【推荐1】函数
的单调递减区间是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881d31ba6042a0dd8f6d1fd4e2468691.png)
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【推荐1】
是定义在
上的函数,其导函数为
,若
,则不等式
(其中
为自然对数的底数)的解集为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
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解题方法
【推荐2】设函数
在
上存在导数
,对任意的
,有
,且
时,
.若
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15bccf9756ec716bd5c04e2641b6441.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0731d8fff806f745dad26017a9513296.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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