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Laws of Exponents for Real Numbers

Simplify : [...

Question

Simplify :
$[{(\frac{1}{2})}^{- 3} + {(\frac{1}{3})}^{- 3} + {(\frac{1}{4})}^{- 3}]$

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Solution

Let,
$= 2^{3} + 3^{3} + 4^{3}$
$= 8 + 27 + 64 = 99$

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