Question j2 Evaluate the line integral I = (3ray2 + 2cos(2x) - 2ry) dr + (2ry + 8y -x2) dy C (a) along the curve y = x2 - x from point A(0, 0) to point B(2, 2). (b) along the curve y = rs from point A(0, 0) to point B(3, 3). (c) round the boundary of the quadrilateral joining the points A(1, 0), (3, 1), (2, 3), and (0, 3)