2. Let closed curve C consist of the line segment from (0,0) to (2, 1), followed by the line segment from (2, 1) to (-1, 1), followed by the piece of y = a? from (-1, 1) to (0,0). Also, let F =(-1,2*y?). a) Find F-Ť ds by integrating F over each piece of C and adding the results. b) Find F.Ť ds by first converting it to a double integral using Greene's Theorem.

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