SOLUTION: Find the sum of the first 8 terms of a geometric series if the first term is 10 and the common ratio is 3.

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Question 1206544: Find the sum of the first 8 terms of a geometric series if the first term is 10 and the common ratio is 3.
Answer by ikleyn(52794)   (Show Source): You can put this solution on YOUR website!
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Find the sum of the first 8 terms of a geometric series if the first term is 10 and the common ratio is 3.
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Use the formula for the sum of the first n terms of a GP 

     =  =  =  = 10*3280 = 32800.    ANSWER

Solved.

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On geometric progressions,  see introductory lessons
    - Geometric progressions
    - The proofs of the formulas for geometric progressions
    - Problems on geometric progressions
    - Word problems on geometric progressions
in this site.



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