Question

Rationalize the denominator is each radical expression ​

Answer 1

OPTION (1) IS CORRECT

$\implies \: \frac{4}{ \sqrt{x} - 2 \sqrt{y} }$

$\implies \: \frac{4( \sqrt{x} + 2 \sqrt{y} }{ \sqrt{ {x}^{2} } - {2}^{2} \sqrt{ {y}^{2} } }$

$\implies \: \frac{4( \sqrt{x} + 2 \sqrt{y} }{x - 4y}$