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What is the sum of the geometric sequence −3, 18, −108, ... if there are 8 terms?
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What is the sum of the geometric sequence −3, 18, −108, ... if there are 8 terms?

User Savpek
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The geometric sum is 719835
User Almeynman
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1 vote
The geometric sum is 719835 
User Danbahrami
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