Question

Proof please.

Let a>0 and b>0
if x>a and y>b prove that 1/xy < 1/a

Answer 1

You were already explained this.

Answer 2

By the way, there's a typo in the last expression.

Answer 3

@average_student if you are unhappy with the answer that Zarkon gave you then simply explain where you are lost. Do not simply close and repost the question. It is both rude and against the code of conduct of OpenStudy. We will be happy to elaborate if you can engage us and tell us where your problem lies.