- #1
A.J.710
- 53
- 1
Homework Statement
http://postimage.org/][/PLAIN]
image url
Homework Equations
N/A
The Attempt at a Solution
I have to solve a different question using a similar method to this one but I cannot figure out how they got the sigma notation into the last equation format. I tried writing out the summation manually as well as the equation substituting n for 0,1,2,3 but they don't match up and I cannot do my next problem without figuring this one out first.
Last edited by a moderator: