# Problem of the Week

## Updated at Jan 11, 2016 2:43 PM

This week we have another calculus problem:

How would you differentiate $$\frac{1}{{x}^{\frac{7}{2}}}$$?

Let's start!

$\frac{d}{dx} \frac{1}{{x}^{\frac{7}{2}}}$

 1 Use Power Rule: $$\frac{d}{dx} {x}^{n}=n{x}^{n-1}$$.$-\frac{7}{2{x}^{\frac{9}{2}}}$Done-7/(2*x^(9/2))