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{1} {2,3} {1,2,4} {2,3,4}
{1,3,2,6} {(1,3),(2,6)} M. {3,6}
={2,3,4}, ={4,5},则A.∩(∁UB)等于( ) A.{4} B.{4,5} {1,2,3,4} {2,3}
(﹣2,1] [﹣2,1) [﹣2,1] [1,2]
={1,2}, ={2,3},则∁U.(A.∪B.)等于( ) A.{1,3,4}B.{3,4} {3} {4}
={1,3}, ={3,5},则∁U.(A.∪B.)等于( ) A.{1,4}B.{2,4} {2,5} {1,5}
= ,则{ x|x≤0 }等于 (A.)A.∩B ( )A.∪B ( )∁U(A.∩B)( )∁U(A.∪B)
{5,7} {2,4} {2,4,8} {1,3,5,6,7}
=,则集合∁U.A.等于( ) A.{x|x<-2或x>0} {x|x≤-2或x>0} {x|x<-2或x≥0} {x|x≤-2或x≥0}
{4} {2,3,4,5} {1,3,4,5} ∅
={x|0={x|x>1},则集合A.∩∁U.B.等于( ) A.{x|1{x|0{x|0
{1,3,5,6,7,8} {2,4,5,6,7,8} {5,6,7,8} {1,2,3,4}
={2,4,6}, ={1},则 (∁U.A.)∪B等于( ) A.{0,1,8,10}B.{1,2,4,6} {0,8,10 } ∅
={x|x2﹣2x>0},则CUA等于( ) A.{x|0≤x≤2} {x|0<x<2} {x|x<0或x>2} {x|x≤0或x≥2}
{x|x≥0} {x|x≤1} {x|0≤x≤1} {x|0