(an+1)2•(a2)n-1等于()A.a4n+3B.a4n+1C.a4n-1D.a4n-数学

题目简介

(an+1)2•(a2)n-1等于()A.a4n+3B.a4n+1C.a4n-1D.a4n-数学

题目详情

(an+12•(a2n-1等于(  )
A.a4n+3B.a4n+1C.a4n-1D.a4n
题型:单选题难度:中档来源:不详

答案

(an+1)2•(a2)n-1=a2n+2•a2n-2=a4n.
故选D.

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