Basic calculus:

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Let C be the portion of the circle x2 + y2 counterclockwise. 4 from (2, 0) to (0, 2) traced a.) Evaluate fc xydy. b.) Find the mass of a wire in the shape of C if the density (mass per unit length) at any point (x, y} on the wire is f[x, y} = x2 + y