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Question
Express the following as a rational number of the form \[\frac{p}{q},\] where p and q are integers and q ≠ 0. (−4)−2
Sum
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Solution
We know that
\[a^{- n} = \frac{1}{a^n}\]
`(-4)^(-2)=1/(-4)^2=1/16`
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