Question 2 (Big-O Computations, 20 points). Sort the functions below in terms of their asymptotic growth rates. Which of these functions have polynomial growth rates? Remember to justify your answers. a(n) = n +n1/2 +n1/3 + ... +n1 b(n) = 3(log(n)] c(n) = n2(2 + cos(n)) d(n) = n 1002m/2 e(n) = 21