From the integers:1,3 ,9,27,81,243,729...

I have:

The sum from k=0 to infin of 3^k times x^k.

How do I incorporate the geometric series into this and finish this problem?

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- Nov 29th 2010, 07:32 PMguyonfire89Generating functions problem (stuck)
From the integers:1,3 ,9,27,81,243,729...

I have:

The sum from k=0 to infin of 3^k times x^k.

How do I incorporate the geometric series into this and finish this problem? - Nov 29th 2010, 11:04 PMCaptainBlack