# Thread: Green's Theorem to evaluate an integral

1. ## Green's Theorem to evaluate an integral

integral c of Pdx+Qdy, where P(x,y)=2x^2 siny Q(x,y)=3y^2sinx
and C is a triangle with vertices (0,0) (4,0) (4,4).

2. Do you know Green's Theorem?

You need to parametrize the sides of the triangle and integrate $Pdx+Qdy$ counter-clockwise along its sides.