# How do you find the critical points for #f(x)= x^(4/3) + 4x^(1/3)+ 4x^(-2/3)#?

##### 1 Answer

Sep 25, 2015

The critical points are

#### Explanation:

First the domain of f(x) is

we must find the roots of the first derivative which is

The roots of the derivative are the roots of the equation

But