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Algebra2 question!!!!!!!!!!!!!!!!!!!!!!!!

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What is the sum of the geometric sequence -3, 18, -108,... if there are 7 terms?

geometric-series

asked Jun 7, 2014 in ALGEBRA 2 by anonymous

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1 Answer

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The geometric sequence is -3, 18, -108....

Common ratio

Sum of geometric series when r < 1.

Where r is common ratio between terms, a is the first term and n is the number of terms.

In this case

answered Jun 7, 2014 by david Expert

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