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AlekseyPX
3 years ago
6

The first term of a geometric series is 3, and the sum of the first term and the second term is 15. What is the sum of the first

six terms?
a) 1,023

b) 3,906

c) 4,095

d) 11,718
Mathematics
1 answer:
Ivan3 years ago
5 0
Sum of n terms in a geometric progression is given by Sn = a1 (1 - r^n) / (1 -r)

3( 1 - 4^6) / (1-4)

= 4,095
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So this can be translated like the following:
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Answer:

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