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Find S15 for the geometric series 72 + 12 + 2 + 1/3 +…
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Find S15 for the geometric series 72 + 12 + 2 + 1/3 +…

User Michael Patterson
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1 Answer

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S1 = 72
S2 = 12 = 72*(1/6)
S3 = 2 = 72*(1/6)^2
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.
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S15 = 72*(1/6)^14 = 9.18*10^(-10)
User Miles Chen
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