Express the following as a rational number: 5^ -3 - Vidyadip

Question

Express the following as a rational number: $5^{-3}$

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Answer

$5^{-3}=\Big(\frac{1}{5}\Big)^{3}$ $=\frac{1}{5}\times\frac{1}{5}\times\frac{1}{5}$ $=\frac{1}{125}$

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