已知函数
,
,若对于任意
,总是存在两个不同的
,
,使得
,则实数a的取值范围为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7587eb20f158864b5adfd5a3e814a867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a33d9c116b3778c6b26f6bc0474d2942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7a1a63d71940774c8ec555524db35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61875dbab4bab494b91c2479b50bb11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fde1415b3d6ec93d36086ae6db180ad.png)
更新时间:2019-11-19 21:30:52
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