已知集合
,
.若
,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c581a30d70e2894bbb93b96528996302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51452061e672940d11737de54c806d2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2018-01-12 21:32:21
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解题方法
【推荐1】若集合
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名校
【推荐1】
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