(AUB)교집합(A여집합UB여집합)=(AUB)교집합(A교집합B)여집합=(AUB)-(A교집합B)={1,3,6},(AUB)-(A교집합B)=(A-B)U(B-A)={1,3,6},A={1,2,3,4},B={2,4,6}
당신은 어느 그룹입니까?