The sum 1 + 1^3+2^3 1+2 + 1^3+2^3+3^3 1+2+3 + + 1^3+2^3+3^3+ +15^3 1+2+3+ +15 - 1 2 (1+2+3+ +15) is equal to:

Question

Accepted Answer

(A)

JEE Main 2019 Mathematics question