n(n+1)=42 → n=6: 6×7=42 → then $ \frac3×6×72 = \frac1262 = 63 $ — too big. - AMAZONAWS

📅 March 11, 2026 👤 scraface

Mar 11, 2026

$n(n+1)=42 → n=6: 6×7=42 → then $ \frac{3×6×7}{2} = \frac{126}{2} = 63 $ — too big.$