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Find Which of the Following Number Is Cube of Rational Number \[\Frac{27}{64}\] . - Mathematics

Sum

Find which of the following number is  cube of rational number \[\frac{27}{64}\] .

 

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Solution

We have: 

\[\frac{27}{64} = \frac{3 \times 3 \times 3}{8 \times 8 \times 8} = \frac{3^3}{8^3} = \left( \frac{3}{8} \right)^3\]

Therefore,

\[\frac{27}{64}\]  is a cube of \[\frac{3}{8}\] .

 
 
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APPEARS IN

RD Sharma Class 8 Maths
Chapter 4 Cubes and Cube Roots
Exercise 4.2 | Q 5.1 | Page 13
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