Implicit Differation and Chain Rule
First, I really need help with implicit differentiation. I tried reading in my book, but they use very basic problems and I did not find it helpful.
The problem I need help with is:
x^2 + xy - y^2 = 4 Solver for y'
I can not get the correct answer. I got (2x)/(x-2y)=y' (This is incorrect).
Next I need help with the chain rule. I understand how to do this, but I am having problems with one question. The question is:
Sqrt (2x)/(x^2+1.8)) <- For this problem, everything is under the radical.