1- 1) Consider the Utility function u = Exax/ - a St. P1X1 + P2X2 = y a. Examine the convexity of the indifference curve. b. Derive the Marshallian demand curves for X1 and X2. c. Derive the Hicksian demand curves for x1 and X2- d. Derive the second order sufficient condition for the utility maximization. e. Derive the indirect utility function. f. Use Roy's Identity to derive the ordinary demand function. g. Prove that C1E11 + A2E21 = - 01. h. Prove that a 1 511+02 $21= 0 =