In an arithmetic progression the sum of the first terms is

MATHEMATICS · Single correct · CBSE · Mathematics · Arithmetic Progressions · Arithmetic Progressions

Problem

In an arithmetic progression the sum of the first nn terms is Sn=4n2+nS_n = 4n^2 + n. What is the common difference of the progression? (a) 99 (b) 88 (c) 44 (d) 1313

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