I={0,1,2,3,4},A={0,1,2,3},B={2,3,4},(CIA)交(CIB)是多少
问题描述:
I={0,1,2,3,4},A={0,1,2,3},B={2,3,4},(CIA)交(CIB)是多少
答
CiA={4}
CIB={0,1}
(CIA)交(CIB)是空集