Which of the following sequences are in G.P.? (vii) 16, 4, 1, 1/4,..........

Which of the following sequences are in G.P.?
(vii)  16, 4, 1, 1/4,..........
Solution :
First term (a)  = 16, common ratio
r  = t2/t1
  =  4/16
r  = 1/4
r  = t2/t1
 r  = 1/4

Since the common ratios are same, it is geometric sequence.

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