Posted by Paul on Wednesday, September 19, 2012 at 11:32pm.
Find the sum of each of the convergent series:
b) 5  1/3 + 20/9  40/27 + 80/81 .....
so first we need to find the general term, and I'm not sure of my answer, but I got:
((1)^2 * 2!)/3^n and a0 = 5
From here on I'm lost.

Calculus  Series2  Paul, Thursday, September 20, 2012 at 10:04am
Found it, the answer is S=3