CSEC Additional Mathematics · 2016 · Paper 1 · Question Q19
The sum of the first n terms of a geometric series is S_n = 4^n - 1. For this series
I. the common ratio is 4
II. the first 3 terms are 3, 15 and 63
III. S_{2n} = 2^{4n} - 1
Which of the statements above are correct?
- (A)I and II only
- (B)I and III only
- (C)II and III only
- (D)I, II and III
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