已知全集U=R,集合A={x|x+2<0},B={x|x-5<0},那么集合
∩B等于_________________________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede77ce097e94a519c2163ac0f985236.png)
更新时间:2018-07-17 15:38:37
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解题方法
【推荐2】已知集合
,集合
的右端点为3,全集
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8e8f6d2db6420933a4ac7610d4e567.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bde4cd05cfec6a7f9e3a53773acf905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423a0957492449c3574c85d024721f18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3292e659b4b0ab8e7254bd927ef16602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8e8f6d2db6420933a4ac7610d4e567.png)
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