I need to show that if a series (an) is absolutely convergent then, the series (a^2 n) absolutely converges. Can anyone help with this. I thought of using the comparison test but wasnt sure if I was heading in the right direction. Any help would be appreciated.
Posts #3 and #7 of this thread: http://www.mathhelpforum.com/math-he...questions.html
might get you started.