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={x|ax=1}, ={0,1},若A.⊆B.,则由a的取值构成的集合为( ) A.{1}B.{0} {0,1} ∅
(0,1) (﹣1,1) (﹣1,0)∪(0,1) (﹣1,2)
={-1,0,1},B={x|-1≤x<1},则A.∩ =( ) A.{0} B.{-1,0} {0,1} {-1,0,1}
={x|-3<x<1}, ={x|log2|x|<1}则A.∩B.等( ) A.(-3,0)∪(0,1)B.(-1,0)∪(0,1) (-2,1) (-2,0)∪(0,1)
{﹣1,0,1,2} {﹣2,﹣1,0,1} {0,1} {﹣1,0}
={x|y=f(x)}, ={y|y=f(x)},则图中阴影部分表示的集合为( ) A.[-1,0]B.(-1,0) (-∞,-1)∪[0,1) (-∞,-1]∪(0,1)
={x|x2-x-2≤0},集合 为整数集,则A.∩B.=( ) A.{-1,0,1,2}B.{-2,-1,0,1} {0,1} {-1,0}
(﹣1,2) (0,1) (﹣1,0) (﹣1,3)
={x|x2+x>2}, ={x|2x<1},则(∁R.A.)∩B等于( ) A.[0,1]B.(﹣2,1) [﹣2,0) [﹣1,0]
={﹣1,0,1,2}, ={x|x<2},则A.∩B.=( ) A.{﹣1,0,1}B.{﹣1,0,2} {﹣1,0} {0,1}
{﹣1,0} {0,1} {﹣2,﹣1,0,1} {0,1,2}
={-2,-1,0,2}, ={x|(X-1)(x+2)<0},则A.∩B= (A.){--1,0} (B.){0,1} ( ){-1,0,1} ( ){,0,,1,2}
={x|ax=1}, ={0,1},若A.⊆B.,则由a的取值构成的集合为( ) A.{1}B.{0} {0,1}
(﹣1,+∞) (﹣1,0] [0,1) (1,+∞)
={x|(1+x)(1﹣x)>0}, ={x|y=},则A.∩B=( ) A.(﹣1,1)B.(0,1) [0,1) (﹣1,0]
(-1,0)∪(0,1) (-1,0)∪(0,1] (0,1) (0,1]
={-2,-1,0,1,2},B={x|(x -1)(x+2)<0},则A.∩B=( ) A. {--1,0} {0,1} {-1,0,1} {,0,,1,2}
={0,1}, ={﹣1,0,a+3},且A.⊆B.,则a等于( ) A.1B.0 ﹣2 ﹣3