设
,
,若
是
的真子集,则
的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b8280d2367e3fccfe75c841a85bfb04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ea36017fa9af677679f90fd29a90ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
更新时间:2016-12-04 18:00:34
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