Mcneo, you are correct with your derivative but but watch where you put those dy/dx things in your integration also pull the constants out of the thing you are intergrating cuz you made a some mistakes due to those. Don't worry, everyone sucks at intergration on their first try. I know I messed it up big time and most people in college still have trouble with it. there a several other rules that can be used. You used the "chain rule" but there is also the quotient rule and the product rule.
dy/dx means (in this context, there are others) take the derivative of a function with output y with respect to x. so take the derivative of all the stuff on the x side of the function.
Oh Gato, you know Single Variable Calc?
Cuz if you do, that would be cool. I may be able to ask you about some calc 2 problems.
I guess I should have asked before this.