\sum_n=1^10 n^2 = rac10(10+1)(2\cdot10 + 1)6 = rac10 \cdot 11 \cdot 216 = 385, - AMAZONAWS

📅 March 6, 2026 👤 scraface

Mar 06, 2026

$\sum_{n=1}^{10} n^2 = rac{10(10+1)(2\cdot10 + 1)}{6} = rac{10 \cdot 11 \cdot 21}{6} = 385,$