- #1
It_Angel
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Homework Statement
14
Ʃ 2(4/3)^n
n=1
Homework Equations
Sn=a(1-r^n)/(1-r)
The Attempt at a Solution
2(1-[4^14]/[3^14])/(-1/3)=330.74
However, the answer sheet gives ~441 as the answer, and I confirmed it by doing it by hand. Why is the equation not working? What's wrong?
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