问题
填空题
已知全集U={1,2,3,4,5,6,7},A={2,4,5},则CUA=______.
答案
因为全集U={1,2,3,4,5,6,7},A={2,4,5},
则CUA={1,3,5,7}.
故答案为:{1,3,5,7}.
已知全集U={1,2,3,4,5,6,7},A={2,4,5},则CUA=______.
因为全集U={1,2,3,4,5,6,7},A={2,4,5},
则CUA={1,3,5,7}.
故答案为:{1,3,5,7}.