The sum $ S_n $ of the first $ n $ terms of a geometric sequence is $ S_n = a \fracr^n - 1r - 1 $. - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$The sum $ S_n $ of the first $ n $ terms of a geometric sequence is $ S_n = a \frac{r^n - 1}{r - 1} $.$