I have the series 1r, 2r^2,3r^3...(or in general nr^n)
what is the sum of this series? Im a bit confused as it is a mixture of an arithmetic series (1,2,3...) and a geometric (r^n)
I have the series 1r, 2r^2,3r^3...(or in general nr^n)
what is the sum of this series? Im a bit confused as it is a mixture of an arithmetic series (1,2,3...) and a geometric (r^n)
I have the series 1r, 2r^2,3r^3...(or in general nr^n)
what is the sum of this series? Im a bit confused as it is a mixture of an arithmetic series (1,2,3...) and a geometric (r^n)
Thanks for your help
You can get to a standard geometric series as follows....
The geometric series in brackets can now be evaluated
and hence a closed form for the sum can be found.