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lindseyharrison
 2 years ago
What is the sum of the geometric sequence 1, 3, 9, … if there are 12 terms?
292,524
265,720
139,968
104,976
lindseyharrison
 2 years ago
What is the sum of the geometric sequence 1, 3, 9, … if there are 12 terms? 292,524 265,720 139,968 104,976

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timo86m
 2 years ago
Best ResponseYou've already chosen the best response.1a=1 r*a^0+r*a^1+r*a^2...

timo86m
 2 years ago
Best ResponseYou've already chosen the best response.1oh wait switch a and r the r has the ^ not the a

ParthKohli
 2 years ago
Best ResponseYou've already chosen the best response.0\[S = {1  r^n \over 1  r} \]

lindseyharrison
 2 years ago
Best ResponseYou've already chosen the best response.0yay!! Thank you :)
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