# Derivative of a fraction and power

1. Dec 15, 2014

### Latte'

I'm trying to take the derivative of [x/x^2+1]^3. Where do I start?

2. Dec 15, 2014

### TESL@

Start as how you start to any derivative, difference quotient.

3. Dec 15, 2014

### Maged Saeed

as I interpret
$$(\frac{x}{x^2}+1)^3$$

start with the chain rule with power rule , then quotient and difference rule .

4. Dec 15, 2014

### mathman

Start by clarifying your expression.
$(\frac{x}{x^2+1})^3$ or $(\frac{1}{x}+1)^3$?

5. Dec 15, 2014

### Latte'

Thanks! That really helped.

6. Dec 15, 2014

### Staff: Mentor

In the future, post questions like this in the Homework & Coursework section (under Calculus), not here in the technical sections. When you post a question in the Homework section, a template appears into which you enter the problem description, any formulas or equations, and what you have tried.