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}.
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=______.
∵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}.