# Thread: series converge or diverge?

1. ## series converge or diverge?

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

2. Originally Posted by twofortwo
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

Hint: an infinite geometric series $\sum^\infty_{n=0}aq^n$ , with $|q|<1$ , converges to $\frac{a}{1-q}$ (this is usually high school stuff).

Tonio