题目
题型:填空题难度:一般来源:不详
答案
又x={1,2,3,4},所以∁x(A∪B)={2}.
故答案为{2}.
核心考点
举一反三
A.{2} | B.{4,6} | C.{l,3,5} | D.{4,6,7,8} |
A.φ | B.{2,4,7,8} | C.{1,3,5,6} | D.{2,4,6,8} |
A.{0,1} | B.{1} | C.{0,1,2} | D.ϕ |
题型:2x+1|>3},则M∩N=( )
A.(-3,-2]∪[1,2] | B.[-3,-2)∪(1,2] | C.(-3,-2)∪(1,+∞) | D.(-∞,-3)∪(1,2] |