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
问题描述:
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
答
A:{2,3,5,7}B:{2,4,6,8}