Question 87426: Find the sum of the first 10 terms of the series 6.4, 3.2, 1.6, ...
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Find the sum of the first 10 terms of the series 6.4, 3.2, 1.6, ...
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r = 3/2/6.4 = 1/2
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S(10) = 6.4[(1/2)^11 -1)/((1/2)-1)]
S(10) = 6.4[-0.9995117/-0.5] = 12.79375
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Cheers,
Stan H.
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