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Question
Find the cube of 0.3 .
Sum
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Solution
We have: \[0 . 3 = \frac{3}{10}\]
Also,
\[\left( \frac{m}{n} \right)^3 = \frac{m^3}{n^3}\]
∴ \[\left( \frac{3}{10} \right)^3 = \frac{3^3}{{10}^3} = \frac{3 \times 3 \times 3}{10 \times 10 \times 10} = \frac{27}{1000} = 0 . 027\]
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