To simplify the expression \((15^{-3} \cdot 4^{7})^{0}/4^{-3}\), we can follow these steps using the properties of exponents.
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Evaluate \((15^{-3} \cdot 4^{7})^{0}\): Any non-zero expression raised to the power of 0 is equal to 1. Thus, \[ (15^{-3} \cdot 4^{7})^{0} = 1. \]
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Now, substitute this back into the expression: \[ \frac{1}{4^{-3}}. \]
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Convert \(4^{-3}\): The negative exponent means we take the reciprocal: \[ 4^{-3} = \frac{1}{4^{3}}. \]
Therefore, \[ \frac{1}{4^{-3}} = 4^{3}. \]
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Calculate \(4^{3}\): \[ 4^{3} = 64. \]
So the entire expression simplifies to \(64\).
The correct answer from your options is: 64.