Hello,

I got the following problems and I am not sure how to do them:

fx(x,y) if f(x.y) = 4x-3y+6

fy(x,y) if f(x.y) = 3x^2+2xy-7y^2

and find fx(x.y) and fy(x.y) f(x.y) = square root(2x-y^2)

fxx(x.y) if f(x.y) = 6x-5y+3

and

dz/dx if z = x^3+4x^2y+2y3^3

Please help