# Math Help - First and Second order Derivatives and Total Revenue

1. ## First and Second order Derivatives and Total Revenue

Cracking my brain on how to do this. Is there any 1 out there who can solve this monster?!

2. here is an example to get you started

$\displaystyle \frac{\partial TR}{\partial x_3} = 2\frac{x_1x_3}{x_2} + \frac{x_2}{x_2x_3} = 2\frac{x_1x_3}{x_2} + \frac{1}{x_3}$

You finish, post if you get stuck