I'm asked to represent as a power series. Clearly it is similar to the geometric form .
I proceeded as follows: .
Of course this isn't in the form of a power series, but I don't really know where to go from here. The answer according to my text is - But I really don't know how they arrived at this - I tried to go backwards from the answer but ended up with something different from the original problem...so I don't know.
Thanks for the help ~ Might have a lot more questions on this topic hehe