Question

Find the value to three places of decimals of each of the following. It is given that
$\sqrt{2}=1.414,\sqrt{3}=1.732,\sqrt{5}=2.236$ and $\sqrt{10}=3.162$

$\left(ii\right)\frac{3}{\sqrt{10}}$

Answer 1

Given: $\frac{3}{\sqrt{10}}$
$=\frac{3\times \sqrt{10}}{\sqrt{10}\times \sqrt{10}}$
$=\frac{3\times \sqrt{10}}{10}$
$=\frac{3\times 3.162}{10}$
$=\frac{9.486}{10}$
$=0.948$