jordanjulich9507 jordanjulich9507

06-02-2024
Mathematics

contestada

Let \left{sₙ\right}_{n ∈ } be a sequence whose kᵗʰ term is sₖ =k 1. Then the sum of the first n terms of the sequence is ______.
A) n(n+1)/2
B) n(n-1)/2
C) n²
D) n² + n

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