You can put this solution on YOUR website! Find the sum of the first 10 terms of the series: 5+15+45...
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Geometric Series with a = 5 and r = 3
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s(10) = a[(r^n -1)/(r-1)] = 5[(3^5-1)/(2)] = (5/2)(242) = 5*121 = 605
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Cheers,
Stan H.
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