2 Consider the vector field G (z, y) = ã1 + ya). [6] a) Let Gbe the quarter circle from (0,2)to(-2,0). Evaluate cos(2t) might be useful. C-dr. (Hint: The trig identity co2(t)-sin2(t)) C1 [6] b) Let C2 be the line segment from (0,2) to (-2,0). Evaluate G dr C2