I need a solution to this question.

[A] Let C be the triangular path in the plane with 1\ ertices (0,0), [1, ] and [1, 1). counterclockwise, and let R be the region inside the triangle. Prove Green's theorem for C in the case that P[I,y] and (Hz, 3;} are arbitrary smooth tu nctions. (B) Answer the analogous problem as {A} but where the path is the counterclockwise circle radius 1 centered at the origin and the region is the unit disk enclosed by that