(1) (20 points) For each of the following utility functions get the marginal utility of consumption of each of the goods. 1/2 1/2 (a) u(Ta, Tb) = Ta b (b) u(x, y) = 3/4y1/4 (c) u(ta, 1) = ;In(x.) + In(x6) (d) u(x,y) = =In(x) + In(y) (e) u(Ta, It) = 21 + It