Question

Help need for this expansion. The step before this is 2+(1+2k(5/n)+k^2(25/(n^2)))

I've followed a similar expansion but don't under stand the "(1+2k(5/n)+k^2(25/(n^2))" aspect of this problem. Please help will give medal.

If you're interested I'd like to understand how to put this into closed-form but just answering the first question is enough for me! (:

Answer 1

can't do it without knowing what \(f(x)\) is

Answer 2

oh lol sorry x^2+2 from x=1 to x=6

Answer 3

mating call again? lol

Answer 4

spring fever ;)

Answer 5

nvm found the answer thanks