Problem 3 (3 pts): Give a recursive definition of the sequence {a;}Q1 for (a) an = 11"1(3. j - 1)/(3.j) for n = 1,2, ..., (b) an = 21-10j +5)for n = 1,2, ..., (c) an = 1171(2j + 1)3 for n = 1, 2