the question is does the series converges or diverges? if so, what does it converge to?
(3.4^n)/(5^n+1) sum from n=2 to n= infinity
we only have the integral, direct comparison, limit and ratio test
thanx in advance!
Hint: an infinite geometric series $\displaystyle \sum^\infty_{n=0}aq^n$ , with $\displaystyle |q|<1$ , converges to $\displaystyle \frac{a}{1-q}$ (this is usually high school stuff).