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(﹣2,4) [﹣2,4) (0,2) (0,2]
={x|x2﹣4x﹣5<0}, ={x|2<x<4},则A.∩B=( ) A.(1,3)B.(1,4) (2,3) (2,4)
x x<-2 x x>3 x -1<x<2 x 2<x<3
(0,3] [﹣4,3] [﹣4,0) [﹣4,0]
={x∈R.|x2﹣4x<0}, ={x∈R.|2x<8},则A.∩B.=( ) A.(0,3)B.(3,4) (0,4) (﹣∞,3)
x x<-2 x x>3 x -1<x<2 x 2<x<3
={x|x2﹣4x<0}, ={x|x<a},若A.⊆B.,则实数a的取值范围是( ) A.(0,4]B.(﹣∞,4) [4,+∞) (4,+∞)
(0,4) (﹣1,4) (﹣1,2) (0,2)
={0,1,2},集合 ={x|x=2m,m∈N},则A.∩B=( ) A.{0}B.{0,2} {0,4} {0,2,4}