Find a parametrization of the boundary curve 68 with positive orientation if 1. S is the part of the surface of the paraboloid z = 6 x2 y2 above the plane 2 = 2 with a normal vector pointing upward. Then 682 b ,t=O>211(entera,b,c,d,ore) a (2 005(1), 2 5in(1), 0) b (2 005(1), 2 5111(1), 2) c (2 005(1), 2 5in(1), 2) d (\\/6 005(1), x/E 5in(1), 0) e (V6 005(1), (/6 5111(1), 2) 2. S is the part of the surface of the paraboloid z = 2x2 + 2y2 2 below the plane 2 = 2 with a normal vector pointing downward. Then 65: C ,120>211(entera,b,c,d,ore) 3 (005(1), 510(1), 0) b (005(1), 5in(1), 2) c (005(1), 5in(1), 2) 0! (V2 005(1), x/2 5in(1), 2) e ( 005(1), 5111(1), 2)