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how do you work this out 2^(-3)

 Jun 14, 2017
 #1
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2^(-3)

 

\(2^{-3}=\frac{ 1*2^{-3}}{\color{green}{1}}=\frac{ 1}{\color{green}{1*2^3}}=\frac{1}{8}\)

 

Whatever is raised to a negative power gets swapped to the other side of the fraction line and the negative power becomes a positive power.

 Jun 14, 2017

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