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_.
问题描述:
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______.
答
∵S={1,3,5},T={3,6}
∴S∪T={1,3,5,6}
∴CU(S∪T)={2,4,7,8}
故答案为:{2,4,7,8}