1. By Cauchy-Schwarz we have: what do you conclude?
First of all, I want to say sorry for the language, I thing I speak pretty well English, but mathematics English is an all different game for me...
I'm from Israel BTW.
Ok, now for the questions:
1. I have 2 infinite series, a^2 from 1 to infinite and b^2 from 1 to infinite, both of them converges, I need to prove the infinite series (a * b) from 1 to infinite Absolute convergence
2. I have the infinite series a^2 from 1 to infinite converges, I need to prove the infinite series (a/n) from 1 to infinite also converges.
I hope you got it, this are the last 2 question I got left in this homework.
10x in advance.