Let F(x, y) =< y^2cos x, 2y sin x >.
A) Is F(x, y) conservative? If so, find the potential function f.
B) Evaluate the integral ZCF · dr where C is the circle centered at (0, 0) with
radius 5.
C) )Evaluate the integral ZCF·dr where C is the triangle with vertices (0, 0), (2, 0), and (2, 6) oriented clockwise
