Let denote the sum of the first natural numbers

MATHEMATICS · Single correct · CBSE · Mathematics · Number Play · Number Play

Problem

Let TnT_n denote the sum of the first nn natural numbers. What is the value of Tn+1−TnT_{n+1}-T_n? (a) nn (b) n+2n+2 (c) n+1n+1 (d) 2n2n

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