the question is on the picture below, thanks

2. Cobb-Douglas...again Consider the Cobb-Douglas production function function of the form, q(k,l) = [calla (a) Determine the relation between oz and the marginal product of k and l. For what values of 01 is the marginal product for each input: (i) increasing, (ii) constant, and, (iii) decreasing. oz l 1 _ a E' For what values (b) Show that the marginal rate of technical substitution (MRTS) is equal to of a is MRTS decreasing in k? (c) For what values of a are the isoquants of q(k, l) convex? (d) Show that this function is homogeneous of degree one. (e) Show that the marginal product functions are homogeneous of degree zero. (f) Show that the production function exhibits constant returns to scale