问题
选择题
已知集合M={x|(x-1)2<4,x∈R},N={x|-2<x≤3,x∈Z},则M∩N=( )
A.{0,1,2}
B.{-1,0,1,2}
C.{-1,0,2,3}
D.{0,1,2,3}
答案
由M={x|(x-1)2<4,x∈R}={x|-1<x<3},
N={x|-2<x≤3,x∈Z}={-1,0,1,2,3},
则M∩N={0,1,2}.
故选A.
已知集合M={x|(x-1)2<4,x∈R},N={x|-2<x≤3,x∈Z},则M∩N=( )
A.{0,1,2}
B.{-1,0,1,2}
C.{-1,0,2,3}
D.{0,1,2,3}
由M={x|(x-1)2<4,x∈R}={x|-1<x<3},
N={x|-2<x≤3,x∈Z}={-1,0,1,2,3},
则M∩N={0,1,2}.
故选A.