The sum of the first \( n \) terms is \( S_n = a \fracr^n - 1r - 1 \). - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

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