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Armeninilu

Armeninilu

Answered question

2022-06-22

Find sum:
i = k n 3

Answer & Explanation

alisonhleel3

alisonhleel3

Beginner2022-06-23Added 23 answers

Observe that
i = k n 3 = 3 ( i = 1 n 1 i = 1 k 1 1 ) = 3 ( n ( k 1 ) ) = 3 ( n k + 1 ) .

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