Recent content by lifhgrl823

That's a good point. My professor wrote that the second derivative should be: ∂φ/∂x + ∂φ/∂y (dy/dx) = ∂φ/∂x + φ(∂φ/∂x) I've been trying to play around with the equation and see how I could get that answer. All of the partial derivatives I've done previously had equations that were equal...

Could someone please explain to me how to find the derivative of this: dy/dx = φ(x, y) Should I break up the equation to make it dy/dx = φ(x) + φ(y) and then derive the parts? I would then get d²y/dx² = ∂φ/∂x + ∂φ/∂y do I have to also multiply both terms by their respective derivatives...