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Evaluate the infinite geometric series: 2 + 1/8 + 1/128 + ...

 Feb 4, 2022
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The sum is \(a\over{1-r}\)

 

\(a\) = first term

\(r\) = common ratio

 

So the sum is... \(2\over{1-{1\over16}}\) = \(\color{brown}\boxed{2 {2\over15}}\)

 Feb 4, 2022

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