JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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The sum

1+\frac{1^{3}+2^{3}}{1+2}+\frac{1^{3}+2^{3}+3^{3}}{1+2+3}+\ldots \ldots+

\frac{1^{3}+2^{3}+3^{3}+\ldots+15^{3}}{1+2+3+\ldots+15}-\frac{1}{2}(1+2+3+\ldots+15

is equal to :

View answer and explanation

Correct option: A

620

Option A (620) is correct because after simplifying the series and subtracting the given term, the result is 620.

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