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={2,5,8}, ={1,3,5,7},则(∁U.A.)∩B等于( ) A.{5}B.{1,3,7} {2,8} {1,3,4,5,6,7,8}
={x|0<x<2}, ={x|x<1},则集合(∁U.A.)∩B.=( ) A.(﹣∞,0)B.(﹣∞,0] (2,+∞) [2,+∞)
={x|1〈x〈4},集合 ={x|2≤x〈5},则A.∩(UB)=( ) A.{x|1≤x〈2} B.{x|1〈x〈2} {x|x〈2} {x|x≥5}
={4,5,7,9}, ={3,4,7,8,9},全集U.=A.∪B.,则集合∁U.(A.∩B.)中的元素共有( ) A.3个 B.4个 5个 6个
={x|x>0}, ={x|x>l},则集合 A.{x|0≤x <1}B.{x|0 {x|x <0} {x|x >1}
{5,7} {2,4} {2,4,8} {1,3,5,6,7}
={x|y=ln(2x-1)},集合 ={y|y=sin(x-1)},则(∁U.A.)∩B.为 ( )A.(,+∞)B.(0,] [-1,]
={x|}, ={x|1<<8},则( U.A.)∩B等于( ) A.[-1,3)B.(0,2]C.(1,2] (2,3)
={2,0,1,6}, ={2,0,1,7}, ={2,0,1,5},则∁U.((A.∩C.)∪B.)=( ) A.{2,0,1,7}B.{0,6,7,8}C.{2,3,4,5} {3,4,5,6}
∅ {2,4,7,8} {1,3,5,6} {2,4,6,8}
={1,2,3,5,7}, ={xN|2<x≤6},全集U.=AUB.,则A(CuB)= A.{1,2,7} B.{1,7} {2,3,7} {2,7}
{1,3,5,6,7,8} {2,4,5,6,7,8} {5,6,7,8} {1,2,3,4}
={1,3,7}, ={x|x=log2(a+1),a∈A.},则(∁U.A.)∩( (∁U.B.)=( ) A.{1,3}B.{5,6} {4,5,6} {4,5,6,7}
={1,2,3,5}, ={2,4,6},则图中的阴影部分表示的集合为( ) A.{2}B.{4,6} {1,3,5} {4,6,7,8}