- #1

TheMathNoob

- 189

- 4

## Homework Statement

Let a,b be in the positive reals. Prove a/b+b/a is >=2

## Homework Equations

## The Attempt at a Solution

I have no idea. Maybe add the two ratios: (a^2+b^2)/a*b and then try to analyze separately the numerator and denominator?