The sum of the first terms of a sequence is given by

MATHEMATICS · Single correct · CBSE · Mathematics · Sequences and Series · Sequences and Series

Problem

The sum of the first nn terms of a sequence is given by Sn=3n2+5nS_n = 3n^2 + 5n. What is the eighth term a8a_8? (a) 5353 (b) 5050 (c) 4747 (d) 4444

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