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Question
Express the following rational numbers with a positive exponent:
\[4^3 \times 4^{- 9}\]
Short/Brief Note
Sum
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Solution
\[4^3 \times 4^{- 9} \]
\[ = 4^\left( 3 - 9 \right) = 4^{- 6} \]
\[ = \left( \frac{1}{4} \right)^6\] → (am x an = am+n)
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