Find the equation for (a) the tangent plane and (b) the normal line at the point Po(3, 1,2) on the surface 3x2+ 2y+ z=33. . . . (a) Using a coefficient of 9 for x, the equation for the tangent plane isFind equations for (a) the tangent plane and (b) the normal line at point Po(0,4, 1) on the surface 9 cos (RX) - 5x y + 2e*Z + 3yz = 23. . . . (a) Using a coefficient of 2 for x, the equation for the tangent plane isPart 1 of 2 Find the linearization L(x,y) of the function f(x,y) at Po. Then find an upper bound for the magnitu rectangle R. f(x,y) = 3 Inx + 5 In y at Po(1, 1) R: x - 1| $0.5, ly - 1 50.1 . . . The linearization L(x,y) of the function f(x,y) at Po is L(1, 1) =