来自傅雄刚的问题
设全集U={1,2,3,4,5,6,7,8,9}A包含于U,B包含于U,且A∩B=2,(CuA)∩(CuB)={1,9},(CuA)∩B={4,6,8},求A和B
设全集U={1,2,3,4,5,6,7,8,9}A包含于U,B包含于U,且A∩B=2,(CuA)∩(CuB)={1,9},(CuA)∩B={4,6,8},求A和B
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2020-04-0521:00