设全集U={1.2.3.4.5.6.7.8},集合S={1.3.5},T={3.6},则Cu(S∪T)等于( )
人气:193 ℃ 时间:2019-10-23 13:35:05
解答
SuT={1,2,3,5,6}
Cu(SuT)={4,7,8}
还有刚刚那道题我打错了,没有负号,是(∞,5)
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