Thread: Please Help Me Double Check this Derivative (dy/dx) Problem? y = (1+sinx/1-cosx)^2

Hello folks,

I took a picture of my work.

Tell me if the method I am using is correct? Thanks!

This is the problem:


This is my work: (
http://img413.imageshack.us/img413/7016/0531001531.jpg)

All of your steps seem correct. You used the chain rule and the quotient rule appropriately and that does appear to be the correct answer. It may or may not be simplified more but that answer is correct.