SOLUTION: The sum of the first 3 terms is 42 and the sum of the next 3 terms is 5 1/4. Determine the first 3 terms of geometric progression.
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Question 850361: The sum of the first 3 terms is 42 and the sum of the next 3 terms is 5 1/4. Determine the first 3 terms of geometric progression. Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! S=t*(1 - r^n)/(1 - r)
42=t*(1 - r^3)/(1 - r),
47.25=t*(1 - r^6)/(1 - r)
r=0.5, t=24
24.12,6 first 3 terms
3, 1.5, .75 second three terms
