What is the sum of the first eight terms of the geometric series 2 + 6 + 18 + 54 + … ?

asked Aug 7, 2019 167k views

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by Arkh

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2+6+18+54+162+486+1458+4375=6561

you multiply the previous number by three to find the next value

Andy McKibbin answered Aug 11, 2019

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