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={x|x2-2x=0}, ={0,1,2},则A.∩B.= ( ) A.{0,2}B.{0,1} {0} {0,1,2}
{0,1,2} {x|x≤2} {1,2} {x|0≤x≤2}
={0,1,2}, ={x|x=2a,a∈A.},则A.∩B.中元素的个数为( ) A.0 B.1 2 3
{0,1} {0,2} {1,2} {0,1,2}
={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}
={x∈N.|x2﹣6x+5≤0}, ={x∈N.|x>2},图中阴影部分所表示的集合为( ) A.{0,1,2}B.{1,2} {1} {0,1}
{0,1,2} {﹣1,0,1,2} {﹣1,0,2,3} {0,1,2,3}
={x|x2-2x=0}, ={0,1,2},则A.∩B.=( ) A.{0}B.{0,1} {0,2} {0,1,2}
{2} {1,2} {0,1,2} {-1,0,1,2}
{﹣1,0} {0,1} {﹣2,﹣1,0,1} {0,1,2}
(0,2) [0,2] {0,1,2} {0,2}
{0,1} {0,1,2} {-1,0,1} {-1,0,1,2}
={0,1,2},则集合 ={x-y|x∈A.,y∈A.}中元素的个数是( ) A.1B.3 5 9
{2} {1,2} {0,1,2} {0,1,2,3}
={0,1,2},集合 ={x|x=2m,m∈N},则A.∩B=( ) A.{0}B.{0,2} {0,4} {0,2,4}