Find the value of 1+ 1^3+2^3 1+2 + 1^3+2^3+3^3 1+2+3 + + 1^3+2^3+3^3+ +12^3 1+2+3+ +12 - 15 (1^2+2^2+3^2+...

Question

Find the value of 1+ 1^3+2^3 1+2 + 1^3+2^3+3^3 1+2+3 + + 1^3+2^3+3^3+ +12^3 1+2+3+ +12 - 15 (1^2+2^2+3^2+ +12^2 ).

Accepted Answer

234

JEE Main Mathematics question