已知集合
,
,
,若
,则实数a的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d677b30489c7df9a20d4dee98d9ef0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878845fc0bb667d2d0ede3c0dca57dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1711c999d549e778bede7e50f885d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521c8f3f084af427ec1c464f8b6bed86.png)
更新时间:2020-11-29 13:12:34
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【知识点】 根据交集结果求集合或参数解读
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