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Topic: how to derive a formula to find the sum of a sequence?
Replies: 4   Last Post: Nov 3, 2012 3:56 PM

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imnotaspai

Posts: 3
Registered: 10/26/10
how to derive a formula to find the sum of a sequence?
Posted: Nov 2, 2010 7:10 PM
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So, let's say I have a question like
5
SUM (k+1)
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?

Thanks



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