设函数
,
①若
,则不等式
的解集为___________ ;
②若
,且不等式
的解集中恰有一个正整数,则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711a65c36cdd87a7cdf26f9b84e5c49b.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a3b43fb07a1d631b294dbf6f0f58713.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a023ef8a7a5d94029b08b4cb30422e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-05-05 09:43:03
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