已知函数
.若方程
恰有3个互异的实数根,则实数
的取值集合为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76d93349ce7c7a4449fb7119fbd1990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06998101affdc274ac163f75f4c14528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-12-08 19:44:21
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