Solve the following recurrence equations, using change of variables technique. Express your answer in terms of (.) for T(n). Assume n = k ^2 . For question 7a. find the explicit recurrence solution (find constants). For question 7b. only find the general recurrence solution

a) T(n) = 2T(n/2) + 3n, T(n) =1

b) T(n) = 2T(n) +log(n)