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Question
Express the following rational numbers with a negative exponent:
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Solution
\[ \left\{ \left( \frac{7}{3} \right)^4 \right\}^{- 3} \]
\[ = \left( \frac{7}{3} \right)^{- 12} \left[ \because \left( a^m \right)^n = a^{mn} \right]\]
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