Question: Identify which of the following geometric series are convergent and then calculate the sum to which these series converge as the number of terms approaches infinity:
(a) 4, 6, 9, ...
(b) 120, 96, 76.8, ...
(c) 0.8, -1.2,1.8, ...
(d) 36,12, 4, ...
(e) 500, 500(0.48), 500(0.48)2, ...
(f) 850, 850(1.2)-1, 850(1.2)-2, ...