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Question
Express the following rational numbers with a positive exponent:
\[\left( \frac{5}{4} \right)^{- 3}\]
Sum
Solution
\[\left( \frac{5}{4} \right)^{- 3} \]
\[ = \left( \frac{4}{5} \right)^3\] → (a−1 = 1/a)
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