Differentiate two functions for me, write it up in LaTeX, then code it as a function in MATLAB

I have two functions that I need to differentiate. I just need you to write up the working out neatly, and not change things around too much in the function itself, write out your working out in LaTeX, and finally, create them as functions in MATLAB. This is an easy and can take someone who knows what they are doing no more than one hour.