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={1,2}, ={2,3},则( ) A.{4,5} B.{2,3} {1} {2}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
={x∈Z|﹣1<x≤3},集合 ={1,2},则集合A.∩(∁R.B.)=( ) A.{0,3}B.{﹣1,0,1,2,3} {﹣1,0,3} {﹣1,0}
{1,2,3,4,6} {1,2,3,4,5} {1,2,5} {1,2}
,函数y=的值域为集合 ,则A.∩(CB.)= ( ) A.[1,2]B.[1,2) (1,2] (1,2)
={x|x>0}, ={x|x2﹣x﹣2<0},则A.∩(∁U.B.)=( ) A.(0,2]B.(﹣1,2] [﹣1,2] [2,+∞)
={1,2}, ={2,3},则A(B.)=( ) A. {2} B. {4,5} {2,3) {1}
{0,1,2} {1,2} {﹣1,0,1} {﹣1,0,1,2}
={0},则集合A.=( ) A.{0,1,2} {1,2} U. ∅
={x|-3≤2x-1≤3},集合 为函数y=lg(x-1)的定义域,则A.∩B.= ( ) A.(1,2)B.[1,2] [1,2) (1,2]
={1,2}, ={2,3},则( ) A.{4,5} B.{2,3} {1} {2}
={x|2x≤4},集合 为函数y=lg(x-1)的定义域,则A.∩B.=( ) A.(1,2) B.[1,2] [1,2) (1,2]
={x|0≤x≤2}, ={y|1≤y≤3},则(∁U.A.)∪B.=( ) A.(2,3]B.(-∞,1]∪(2,+∞) [1,2) (-∞,0)∪[1,+∞)
={x|2x≥4},集合 ={x|y=lg(x﹣1)},则A.∩B.=( ) A.[1,2)B.(1,2] [2,+∞) [1,+∞)
={x| y=lg(x﹣1)},集合,则A.∩B等于 A. (1,2] (1,2) [1,2) [1,2]
={x|0≤x≤2}, ={y|1≤y≤3},则(∁U.A.)∪B.=( ) A.(2,3] B.(-∞,1]∪(2,+∞) [1,2) (-∞,0)∪[1,+∞)
{1,2} {5} {1,2,3} {3,4,6}