1. Aug 19, 2007

### JerG90

1. The problem statement, all variables and given/known data

2. Relevant equations

Basic rules- Power, product, and quotient

3. The attempt at a solution

The first step would be to rewrite the equation:

f(x)= x^2/3 + 1/ x^1/2

I'm lost here. I dont know what to do when the variable is in the denominator like that.

Any help would be greatly appreciated.

2. Aug 19, 2007

### learningphysics

You can bring the denominator up, and 1/x^(1/2) becomes x^(-1/2)... or you can use the quotient rule for derivatives.

3. Aug 19, 2007

### pardesi

rememeber $$x^{\frac{-1}{2}}=\frac{1}{x^{\frac{1}{2}}}$$
also recalll the formula for derivative of $$x^{n}$$

4. Aug 20, 2007

### Gib Z

Or as you suggested, for your problem with the second part, just use the quotient rule!