로그인
WAEC - Mathematics (2009 - No. 7)
Two sets are disjoint if
they are both empty
their union is an empty set
their intersection is an empty set
one of them is a subset of the other
댓글 (0)
댓글을 달려면 로그인하세요
광고
자바스크립트가 이 페이지를 올바르게 로드하도록 허용
