This may even be A-Level actually.
Anyway I just used the product rule to break it down into two parts
differentiating u is easy, but now I am struggling differentiating v. help?
I am very out of practice with differentiation as I have not done it for over three years. However, I have just come across this problem and I need to solve it as soon as possible. I have tried reading around about how to do it, but to no avail.
Get dx/dy when
x = ay[1-((y/b)^3)]