若对任意
,
,当
时,
,则a的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05dc6deb516c0c48d2afba8a40ed549a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7acf9f8bbbc66a74fabcbc0b99f22c83.png)
更新时间:2023-10-11 12:14:58
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【知识点】 由函数在区间上的单调性求参数
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