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Geometric Series Sum

Finite Sₙ = a₁(rⁿ − 1)/(r − 1) and infinite S = a/(1 − r).

Series parameters
189
Finite sum Sₙ
diverges
Infinite sum (|r|<1)

S = a₁ × (rⁿ − 1) / (r − 1)

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