问题 填空题

设集合A={2,4,6,8,10},CUA={1,3,5,7,9},CUB={1,4,6,8,9},则集合A∩B=______.

答案

∵集合A={2,4,6,8,10},CUA={1,3,5,7,9},

∴U={1,2,3,4,5,6,7,8,9,10},

∵CUB={1,4,6,8,9},

∴B={2,3,5,7,10},

A∩B={2}.

故答案为:{2}.

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