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Mathematics 19 Online
OpenStudy (anonymous):

help please

OpenStudy (anonymous):

OpenStudy (solomonzelman):

Do you know the formula for the sum of the geometric sequence? http://www.regentsprep.org/Regents/math/algtrig/ATP2/GeoSeq.htm There are 4 terms and the ratio (even I noticed this) is 4.

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