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

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timo86m Group TitleBest ResponseYou've already chosen the best response.0
ooh i like these
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
a=1 r*a^0+r*a^1+r*a^2...
 one year ago

timo86m Group TitleBest ResponseYou've already chosen the best response.0
oh wait switch a and r the r has the ^ not the a
 one year ago

ParthKohli Group TitleBest ResponseYou've already chosen the best response.0
\[S = {1  r^n \over 1  r} \]
 one year ago

lindseyharrison Group TitleBest ResponseYou've already chosen the best response.0
B?
 one year ago

lindseyharrison Group TitleBest ResponseYou've already chosen the best response.0
yay!! Thank you :)
 one year ago
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