设A={3,5,6,8} B={4,5,7,8} 求AUB,A∩B求答案快啊····

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设A={3,5,6,8} B={4,5,7,8} 求AUB,A∩B求答案快啊····
设A={3,5,6,8} B={4,5,7,8} 求AUB,A∩B
求答案快啊····

设A={3,5,6,8} B={4,5,7,8} 求AUB,A∩B求答案快啊····
AUB={3,4,5,6,7,8}
A∩B={5,8}