Question

Find the rationalising factors of the denominators of
$\frac{1}{2\sqrt{3}}$
$\frac{3}{\sqrt{5}}$
$\frac{1}{\sqrt{8}}$

Answer 1

$\frac{1}{2\sqrt{3}}-\sqrt{3}$ is rationalising factor

$\frac{3}{\sqrt{5}}-\sqrt{5}$ is rationalising factor.

$\frac{1}{\sqrt{8}}-\sqrt{8}$ is rationalising factor.