Asked by Bry
The sum of the first 10 terms of a geometric series is 699 050. The common ratio is 4. Determine the first term.
Answers
Answered by
Reiny
sum(10) = a(r^10 - 1)/(r-1)
699050 = a(4^10 - 1)/3
2097150 = a(1048575)
a = 2
699050 = a(4^10 - 1)/3
2097150 = a(1048575)
a = 2
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