11-12高一上·安徽·期末
1 . .设集合A={-1,1,2},B={a+1,a2+3},A∩B={2},则实数a的值为_________.
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11-12高一上·江苏盐城·期末
2 . 满足条件
的所有集合A的个数是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/255ae39e9329bd4ca7dad36fbad3d459.png)
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11-12高一上·四川宜宾·期末
3 . 定义A,B之间的运算“*”:A*B={x|x=x1+x2,x1∈A,x2∈B},若A={1,2},B={1,2,3},则集合A*B=____
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10-11高一上·吉林·
解题方法
4 . 已知A=
-1,3,2
-1
,B=
3,![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/b2e32fe7c58a4ce6bbf4b19dcf51d192.png?resizew=23)
.若B
A,则实数
= ______ .
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/e41d0a9c950640b18697497812dabe03.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/6617ae30f3d14ce6a9299ec4a0d31639.png?resizew=18)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/0ac48d478e5e4d74a1eaf35e0437b564.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/e41d0a9c950640b18697497812dabe03.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/b2e32fe7c58a4ce6bbf4b19dcf51d192.png?resizew=23)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/0ac48d478e5e4d74a1eaf35e0437b564.png?resizew=11)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/c764b3c24c3e49d7ba1d6ee82e3c9b77.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2012/1/11/1578137580609536/1578137580945408/STEM/6617ae30f3d14ce6a9299ec4a0d31639.png?resizew=18)
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10-11高一上·上海·期中
名校
5 . 设集合
,集合
,则
__________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abb965e2a10c5ab0cdbaa59ca3a6bbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9d0c7207972353c42843f8a5397bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1336d38741aab2255a35c26612bbd7cc.png)
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10-11高一上·河南周口·期中
6 . 已知全集
,则集合![](https://img.xkw.com/dksih/QBM/2011/1/20/1569975270662144/1569975275847680/STEM/a5ab1c1659ef4bdf9c77a2405f46aa25.png?resizew=85)
_______ .
![](https://img.xkw.com/dksih/QBM/2011/1/20/1569975270662144/1569975275847680/STEM/c83219760d6d42738e0069d2ddfa8453.png?resizew=259)
![](https://img.xkw.com/dksih/QBM/2011/1/20/1569975270662144/1569975275847680/STEM/a5ab1c1659ef4bdf9c77a2405f46aa25.png?resizew=85)
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10-11高三上·江苏泰州·阶段练习
7 . 设M={a,b},则满足M∪N
{a,b,c}的非空集合N的个数为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b980d8446f130dfc405c196109e73ea4.png)
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