## Trending News

Promoted

# Summation and Riemman's sum question?

Find the value of the sum.

n

summation of ∑ (5 + 6i)^2

i=1

answer + justification, auto 10 points

### 1 Answer

Relevance

- BrambleLv 78 years agoFavorite Answer
I don't quite see what you're doing with Riemann's Sum here but the series summation you request goes like this:

(5 + 6i)² = 25+60i + 36i² so the summation:

∑ = 25 + 60.∑i + 36.∑i² from i = 1 to n

= 25 + 60 ͯ n ͯ (1+n)/2 + 36 ͯ n ͯ (n+1) ͯ (2n+1)/6

Still have questions? Get your answers by asking now.