已知集合U={x|x
人气:133 ℃ 时间:2019-11-20 11:25:06
解答
U={x|x<9,x∈N}={0,1,2,3,4,5,6,7,8}
CuA={0,4,5,6,8},CuB={0,2,7,8}
∴CuA∪CuB={0,2,4,5,6,7,8}
A∩B={1,3},∴Cu(A∩B)={0,2,4,5,6,7,8}
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