设全集U={1,2,3,4,5,6},集合P={1,2,3,4},Q={3,4,5},则P∩(CUQ)=_.

问题描述:

设全集U={1,2,3,4,5,6},集合P={1,2,3,4},Q={3,4,5},则P∩(CUQ)=______.

∵全集U={1,2,3,4,5,6},Q={3,4,5},
∴CUQ={1,2,6},又P={1,2,3,4},
则P∩(CUQ)={1,2}.
故答案为:{1,2}