若集合A={-2,-1,0,1,2},则集合{y|y=|x+1|,x∈A}=( )A.{1,2,3}B.{0,1,2}C.{0,1,2,3}D.{-1,0,1
题型:单选题难度:简单来源:不详
若集合A={-2,-1,0,1,2},则集合{y|y=|x+1|,x∈A}=( )A.{1,2,3} | B.{0,1,2} | C.{0,1,2,3} | D.{-1,0,1,2,3} |
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答案
将x=-2,-1,0,1,2代入y=|x+1|得:y=1,0,2,3, ∴集合{y|y=|x+1|,x∈A}={0,1,2,3}. 故选C |
举一反三
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