# Homework Help: Complex Variables

1. Aug 20, 2012

### MEM33

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

Determine the set on which f(z) = 1/(z^3 +1) is analytic and compute its derivative.

2. Relevant equations

Hint: you do not need to appeal to the Cauchy-Riemann equations

3. The attempt at a solution
Total stuck with this one. everything we have done this far has been using the c-r equations.

Thanks for any input.

2. Aug 20, 2012

### Mute

2) When can you treat taking a derivative of a complex function $\frac{df(z)}{dz}$ just like taking a derivative of a real function?