Exercise 19Are there any experts on partial derivatives who may provide a detailed explanation?

Determine the first partial derivatives of the function , ( = 3017 f (x.V) =3 / (N.Y) = 1248 f (x.y) = 12xy' f (x.) = 1258 U 1 (x.y) =0f (x.y) =12y3 ( (x.y) = 3y# f (x.y)=12my3