Question

rationalize the denominator 2/√3-√5

Answer 1

$2/( \sqrt{3}- \sqrt{5} ) * 1/( \sqrt{3} + \sqrt{5} )$
$=2( \sqrt{3} + \sqrt{5})/ \sqrt{3} ^{2} - \sqrt{5} ^{2}$
=$-2*( \sqrt{3} + \sqrt{5} )$