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## Homework Statement

In the following series':

http://image.cramster.com/answer-board/image/cramster-equation-2009410014306337491927047975008434.gif

According to my book, we only have a common range of summation here for n >= 2.

Therefore we need to treat n = 0 and n = 1 separately.

We thus write:

[2r(r-1) + 3r - 1]c0 = 0

and

[2(r+1)r + 3(r+1)-1]c1 = 0

My question is in both cases we ignored the last (4th) series to develop these two equations. How can we just ignore this power series?

I imagine it must be because its summation begins at n=2 unlike the others, but why are we allowed to ignore it up until n = 2?

Thanks!

## Homework Equations

## The Attempt at a Solution

## Homework Statement

## Homework Equations

## The Attempt at a Solution

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