The line integral of F around the perimeter of the rectangle with corners (3,0),(3,2),(-3,2),(-3,0) traversed in that order is -333.06456
How to determine the line integral of F around the perimeter?
The F can be rewritten as
F(x,y) = [6(x+y) , 6sin(y)
The path C on which we are going to evaluate the integral is