7. (10 pts) Using the Master metod (as presented in lectures), give a tight (O) asymptotic bound for each of the following recurrences, if the Master method is applicable.. Show your work. (a) T(n) = 2T(n/2) +n4 (b) T(n) = 10T (7/10) + 1 (c) T(n) = 2T (n/4) + Vn (d) T(n) = 4T(n/2) + n2 log n (e) T(n) = T(n 1) + 5n