1. Assume that you have an equation of a plane as: + by + 02: = d with 0 0. (a) Determine a parametrization flu, '0) for this plane. (b) Compute If}; x F1) and l?\" x 17;, . (c) We can compute the surface area of this plane over a region D in the myplane using 3 = If I?\" X Fvl dA. Using your answer to (b), explain why the surface area of the plane over D D can easily be written in terms of the area of D