已知全集
,
,
,
,则实数a的值为________ ;集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465524dc9d3ce616032fc2a59bf14f60.png)
________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c00a91af23e3106574947939ef35310.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a1e9dd14cbd2271ba2f472664ad57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cb6131a80013f07ee5be532d178c7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7fef9f78cdc1f4b32ad56cd51a8cd3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465524dc9d3ce616032fc2a59bf14f60.png)
更新时间:2021-09-17 22:01:58
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【推荐2】已知集合A={x|x<1,或x>5},B={x|a≤x≤b},且A∪B=R,A∩B={x|5<x≤6},则2a-b=___ .
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