题目内容
已知集合A=-1,3,2-1,集合B=3,.若BA,则实数= .
由,经检验,为所求
已知集合A={0,1,2,3,4,5},B={1,3,6,9},C={3,7,8},则(A∩B)∪C等于( )
A.{0,1,2,6,8} B.{3,7,8}
C.{1,3,7,8} D.{1,3,6,7,8}
(A){0,1,2,6,8} (B){3,7,8} (C){1,3,7,8} (D){1,3,6,7,8}
已知集合A={0,1,2,3,4,5},B={1,3,6,9},C={3,7,8},则(A∩B)∪C等于 ( )
A.{0,1,2,6,8} B.{3,7,8} C.{1,3,7,8} D.{1,3,6,7,8}