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What is the sum of the first five terms of a geometric series with A1 equals 20 and R equals 1/4

What is the sum of the first five terms of a geometric series with A1 equals 20 and R equals 1/4
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What is the sum of the first five terms of a geometric series with A1 equals 20 and R equals 1/4

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User Stofke
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Sum = 20(1-(1/4)^5) / (1-1/4) = 26.64
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User SSemashko
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