Question

Rationalize the denominator of the following-
$\frac{3}{\sqrt{5}}$

Answer 1

$\frac{3}{\sqrt{5}}$

As we know that the rationalization factor for $\frac{1}{\sqrt{a}}$ is $\sqrt{a}$.

$\therefore \frac{3}{\sqrt{5}}=\frac{3}{\sqrt{5}}\times \frac{\sqrt{5}}{\sqrt{5}}$

$\Rightarrow =\frac{3\times \sqrt{5}}{{\left(\sqrt{5}\right)}^2}$

$\Rightarrow =\frac{3\sqrt{5}}{5}$