3.a 3.b Aggregate income )7 > Ois to be distributed among a set ll of individuals to maximize the utilitarian social welfare function W221\" ie][ Suppose that ui = '02 i)Bwhere (Xi > 0for all i e 11. Show that if B e (0, 1) then income must be distributed equally if and only if at = oe'for all i, j 6 ll. Now suppose that ix" at oe/for all i,j 6 ll. What happens in the limit as B -> 0? How about as B -> 1? Interpret