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Find the geometric sum: 40 + 20 + 10 + … + 0.078125
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Find the geometric sum: 40 + 20 + 10 + … + 0.078125

User Daquana
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This algebra lesson explains geometric series. ... To find the sum of the first n terms of a geometric sequence: Sn = the summation of ... 5 , -10 , 20 , -40 , 80 , .
User Putr
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