# Problem of the Week

## Updated at Apr 7, 2014 1:47 PM

How can we solve for the derivative of $${x}^{\frac{9}{2}}$$?

Below is the solution.

$\frac{d}{dx} {x}^{\frac{9}{2}}$

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