# Problem of the Week

## Updated at Sep 8, 2014 1:03 PM

This week we have another calculus problem:

How can we find the derivative of $$\frac{1}{{x}^{\frac{15}{2}}}$$?

Let's start!

$\frac{d}{dx} \frac{1}{{x}^{\frac{15}{2}}}$

 1 Use Power Rule: $$\frac{d}{dx} {x}^{n}=n{x}^{n-1}$$.$-\frac{15}{2{x}^{\frac{17}{2}}}$Done-15/(2*x^(17/2))