Date: Nov 2, 2010 7:10 PM
Author: imnotaspai
Subject: how to derive a formula to find the sum of a sequence?

So, let's say I have a question like
SUM (k+1)

5 being the upper limit
k being lower limit
k+1 being the sequence

How would I find a formula to get the answer, without actually adding every k+1 ect

The teacher told us to do something like this for the first step:
1 2 3 4 5
5 4 3 2 1
sum of the top and bottom = 6.. From there I'm lost

Can anyone help?