Let be the curve given by the intersection of the plane z = 2 and the cone z = √² + y² counter- clockwise oriented as viewed from above. Let the vector field F = (x²-y, 4z, 1²). Use Stokes' theorem to find the circulation of F around by integrating over (i) the surface of the cone (ii) the flat disk of radius 2 centered on the z-axis and lying in the plane z = 2.

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