Question 3 of 8 Give (a) the first four terms of the sequence for which a, is given and (b) the first four terms of the infinite series associated with the sequence. n an n = 1, 2, 3.. . (a) a1 = , a2= . a3 =. a4 = (Type integers or simplified fractions.) (b) The first four terms of the infinite series associated with the given sequence are and (Type integers or simplified fractions.)