Question
Find the cube of: $ 2.1$

Answer

$2.1$
$=(2.1)^3$
$=\left(\frac{21}{10}\right)^3$
$=\frac{21 \times 21 \times 21}{10 \times 10 \times 10}$
$=\frac{9261}{1000}$
$=9.261$

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