1 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c13fc4ee986236b8a19b4e5080d2436.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b54d728798d3fffbe5a9967035f17e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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2 . 已知集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0556422811f9cce95fbc9910b2d02e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4bd1a7c9547dc95b9afed3f4c5c80b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
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