SOLUTION: Find the sum of the infinite geometric series:1+1/3+1/9+1/27+1/81.....

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Question 620344: Find the sum of the infinite geometric series:1+1/3+1/9+1/27+1/81.....
Answer by nerdybill(7384) About Me  (Show Source):
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Find the sum of the infinite geometric series:1+1/3+1/9+1/27+1/81.....
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the common ratio 'r' is 1/3
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S = a1/(1-r)
S = 1/(1-1/3)
S = 1/(3/3-1/3)
S = 1/(2/3)
S = 3/2 (answer)