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Question 1 0.3 pts Calculate 3x dy, where C is a positively oriented triangular curve with vertices (0,0), C (3,0), and (5,4). (enter an integer)Question 2 0.2 pts Let F(x, y) = ( arctan(1 + x2) - x" cos(y), 4 sin(y) + esin(y) and C be the closed positively oriented curve x2 + y? = 20. 1. Is F conservative? (enter yes or no 2. F - dr = (enter an integer) CQuestion 3 0.5 pts Let D be the region bounded byy = -x2 and y = x - 6, and let C be the boundary curve of D oriented positively. Use Green's Theorem to set up the following integral r'dx + re dy = f(x, y) dy da b = C = d= f(x,y) =