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OpenStudy (kaylaprincess):
oh gosh....please... Find the sum of a finite geometric sequence from n = 1 to n = 7, using the expression –4(6)^(n – 1)
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OpenStudy (superdavesuper):
see this about geometric series: http://mathworld.wolfram.com/GeometricSeries.html from the expression –4(6)^(n – 1), a=-4 and r=6 use the eqn from the link to calculate the sum. good luck :)
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