Solve the recurrence relations together with the initial conditions given:
a) a_n = a_{n-1} for n ≥ 1 and a_0 = 2.
b) a_n = -4 a_{n-1} - 4 a_{n-2} for n ≥ 2 and a_0 = 0, a_1 = 1.
c) a_n = 4 a_{n-2} for n ≥ 2 and a_0 = 0, a_1 = 4.
a) The solution is given by: a_n = │ │ for all n.
b) The solution is given by: a_n = │ │ for all n.
c) The solution is given by: a_n = │ │ for all n.