1. The problem statement, all variables and given/known data Differentiate 2. Relevant equations Chain Rule: dg/dx = du/dx . dv/du . dg/dv 3. The attempt at a solution My answer(wrong): Correct answer provided to us(not mine): I understand the correct solution that was provided to us, but what I don't understand is why my method isnt correct? Also can you check in particular my dv/du . I suspect theres something wrong there.