Question

Calculus 1 Problem / Series
(Will post the problem below)

Answer 1

Given a series Σ an of non-negative terms. If limit (described below) = l , then prove that the series converges.

Answer 2

google "root test" you will get it right away

Answer 3

thanks bro

Answer 4

here, for example, in paul's notes (a good resource for all calc)
http://tutorial.math.lamar.edu/Classes/CalcII/RootTest.aspx

Answer 5

yeah pauls notes is legit for calc :) thanks again

Answer 6

gimmick is to compare to geometric series which you know converges
details in the link

Answer 7

yw