设全集U={1,2,3,4,5},A={1,3,5},则满足A∩B=∅,A∪B=U的集合B=( )
问题描述:
设全集U={1,2,3,4,5},A={1,3,5},则满足A∩B=∅,A∪B=U的集合B=( )
答
设全集U={1,2,3,4,5},A={1,3,5},则满足A∩B=∅,A∪B=U的集合B=(2,4 )
答
应为A∩B=∅,A∪B=U所以B是A的补集,
已知全集U={1,2,3,4,5},A={1,3,5}
B={2,4}