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[Post New]8 Feb 2008 19:52:24 IST
    Subject: Geometric Progression
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srujana (3100)

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Olaaa!! Perrrfect answer. 558  [713 rates]
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@ tarin

if r=1 all the terms in the G.P would be equal......which means it is not a 'progression'.

and further the formula of sum upto n terms is not valid if r=1 as denominator would become 0
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