Let a and b be real numbers such that a + b = 4 and a^4 + b^4 = 16. (a) Find all possible values of ab (b) Find all possible values of a + b (c) Find all possible values of a and b
(a) ab = 24
(b) a + b = 11
(c) (a,b) = (3,8) and (8,3)
