discrete math

Q1. [4 points] Find the next four terms of the sequence defined by each of these recurrence relations and initial conditions. a) an = 5 * an-1 , ao = 1 b) an = an-1 + 2 an-2, ao = 1, a1-2 c) an = n an-1 + n2 an-2 , ao = 0, a=1