(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

find the sum of the series to 'n' terms

(1^3 / 1 ) + (1^3 + 2^3 / 1+2 ) + (1^3 + 2^3 + 3^3 / 1+2+3 ) +......

2. Relevant equations

sigma n^2 = n(n+1)(2n+1) / 6

sigma n = n(n+1) / 2

3. The attempt at a solution

numerator = 1^3 + 2^3 + ....... n^3

denominator = 1+2+3+.......n

.....

my answer comes out to be n(n+1) / 2 , but i think thats wrong...

please lead me

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# Homework Help: Sequence and series

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