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Find the Cube of 12 7 .

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Question

Find the cube of \[\frac{12}{7}\] .

 

 

Sum
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Solution

\[\because\]  \[\left( \frac{m}{n} \right)^3 = \frac{m^3}{n^3}\] 

\[\therefore\] \[\left( \frac{12}{7} \right)^3 = \frac{{12}^3}{7^3} = \frac{12 \times 12 \times 12}{7 \times 7 \times 7} = \frac{1728}{343}\]

 

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Chapter 2: A Cube - Exercise 4.2 [Page 13]

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R.D. Sharma Mathematics Volume 1 and 2 [English] Class 8
Chapter 2 A Cube
Exercise 4.2 | Q 4.03 | Page 13

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