- #1

Rony

- 1

- 0

## Homework Statement

prove or refute : let f(x), g(x) be integrable functions on [a,b] so |f(x)-g(x)| integrable on a [a,b]

## Homework Equations

## The Attempt at a Solution

I'm pretty sure that it's right, I just can't find formal proof, someone can give me direction.