摘要：设U={xÎN|x<10}, A={1,5,7,8}, B={3,4,5,6,9}, C={xÎN|0≤2x-3<7} 求: A∩B,A∪B,(CuA)∩(CuB), (CuA)∪(CuB),A∩C, [Cu]∩(CuA). 解:U={xÎN|x<10}={0,1,2,3,4,5,6,7,8,9}, C={xÎN|≤x<5}={2,3,4} A∩B={5} A∪B={1,3,4,5,6,7,8,9} ∵CuA={0,2,3,4,6,9} CuB={0,1,2,7,8} ∴={0,2} ={0,1,2,3,4,6,7,8,9} A∩C=F 又 ∵C∪B={2,3,4,5,6,9} ∴Cu={0,1,7,8} ∴[Cu={0}

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