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={0,1,3,5,8},集合 ={2,4,5,6,8},则 = ( ) A.{5,8} B.{7,9} {0,1,3} {2,4,6}
={x|x2-2x-3<0},集合 ={x|>1},则∁BA.=( )
A. [3,+∞) B. (3,+∞)
(-∞,-1]∪[3,+∞) (-∞,-1)∪(3,+∞)
{5} {0,3} {0,2,3,5} {0,1,3,4,5}
={0,1,2,3}, ={x|lnx>0},则A.∩B.=( ) A.{0,1,2,3}B.{1,2,3} {2,3} {3}
={0,1,2,3}, ={x|x(x-3)<0},则A.∩B.= ( ) A.{0,1,2,3}B.{0,1,2} {1,2} {1,2,3}
{0,1} {0} {-1,2,3} {-1,0,1,2,3}
={3,a2},集合 ={0,b,1-a},且A.∩B.={1},则A.∪B.=( ) A.{0,1,3}B.{1,2,4} {0,1,2,3} {0,1,2,3,4}
={x|(x-1)(x+2)=0}; ={x|(x+2)(x-3)=0},则集合A.∪B.是( ) A.{-1,2,3} B.{-1,-2,3} {1,-2,3} {1,-2,-3}
={0,1},则满足条件A.∪ ={0,1,2,3}的集合B.共有( ) A.1个 B.2个 3个 4个
={0,1,2}, ={2,3},则集合A.∪B.=( ) A.{1,2,3}B.{0,1,2,3} {2} {0,1,3}
={x∈N|0≤x≤5},∁A. ={1,3,5},则集合B.=( ) A.{2,4}B.{0,2,4} {0,1,3} {2,3,4}
V1=9V2 V2=9V1 V2=3V1 V1=3V2
,则a的可取值组成的集合为( ) (A.){-3,2} ( ){-3,0,2} ( ){3,-2} ( ){3,0,-2}
={x|x2﹣2x﹣3<0},集合 ={x|2x+1>1},则∁BA.=( ) A.[3,+∞)B.(3,+∞) (﹣∞,﹣1]∪[3,+∞) (﹣∞,﹣1)∪(3,+∞)