SOLUTION: Find the sum indicated for each of the geometric series listed 3 + 9 + 27 + ..., find S10

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Question 412080: Find the sum indicated for each of the geometric series listed
3 + 9 + 27 + ..., find S10

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!

Hi
Geometric Series: {3,9,27 ...} r = 3
= a(1-r^10)/(1-r)
= 3(1-3^10)/(-2) = 3*-59048/-2 = 88,572
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