Question

[1³ + 2³ + 3³ + ..... + 9³ + 10³] is equal to

• A. 3575
• B. 2525
• C. 5075
• D. 3025

Answer 1

Answer:

D. 3025

= [n(n+1)/2]² = (10x11/2)² = 55² = 3025