已知函数
,若函数
有三个零点,则实数k的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcb693531887ebe3496b1a31dc0ad59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e5687ada0acac1eed4943c50260b6e.png)
更新时间:2020-06-29 20:31:03
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