Question

The rationalising factor of
$1 \div \sqrt{50}$

is:​

Answer 1

The rationalizing factor of $\dfrac{1}{\sqrt{50}}$ is $\sqrt {2}$.

This is because,

$\dfrac{1}{\sqrt{50}} = \dfrac{1}{5\sqrt{2}}$

= $\dfrac{1}{5\sqrt{2}} × \red{\dfrac{\sqrt{2}}{\sqrt{2}}}$

= $\dfrac{\sqrt{2}}{10}$.

More:-

When you want to rationalize any denominator multiply the numerator, and denominator by its conjugate. [(a - b) for (a + b).]