Find a Maclaurin series for f(x)=(6)/((1-x)^4)

looks simple, but I know I am not getting the right answer (Headbang)

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- Nov 15th 2009, 07:40 PMGrimeyAnother "simple looking" Maclaurin Series
Find a Maclaurin series for f(x)=(6)/((1-x)^4)

looks simple, but I know I am not getting the right answer (Headbang) - Nov 15th 2009, 07:57 PMchisigma
Suppose that You have...

(1)

... and You derive it three times. You obtain...

(2)

Now if You know the McLaurin expansion of what is the procedure to obtain the McLaurin expansion of ?...

Kind regards

- Nov 15th 2009, 08:49 PMGrimey
Still confused, on expansion.

- Nov 16th 2009, 01:01 AMchisigma
Because for is...

(1)

... deriving 'term by term' we have in sequence...

(2)

(3)

(4)

If necessary of course we can proceed further (Wink) ... so that we obtain in general...

(5)

Kind regards