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What is the sum of the geometric sequence 1,3,9... If there are 14 terms?
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What is the sum of the geometric sequence 1,3,9... If there are 14 terms?

User Eidy
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Answer:

Explanation:


s_n=(a(r^n-1))/(r-1),\ a=initial,\ r=common\ ratio,\ n=term\ number\\ \\ s_(14)=(1(3^14-1))/(2)\\ \\ s_(14)=2391484

User Bany
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