Q. Which of the following gives the sum of the first n natural numbers?

(A) nc2
(B) (n-1)c2
(C) (n+1)c2
(D) (n+2)c2

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✅ Correct Answer: (C) (n+1)c2

Explanation: the sum of first n natural numbers is given by n*(n+1)/2, which is equal to (n+1)c2.

Published by Mr. Dubey ⭐ 104.82K Points at 16-Sep-2023 03:43 pm in Design and Analysis of Algorithms

Explanation by: Mr. Dubey

the sum of first n natural numbers is given by n*(n+1)/2, which is equal to (n+1)c2.

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