Question

rationalise the denominator 2/√11-√13​

Answer 1

hope it helps..........

Answer 2

$\frac{2}{ \sqrt{11} - \sqrt{13} }$

$= \frac{2}{ \sqrt{11} - \sqrt{13} } \times \frac{ \sqrt{11} + \sqrt{13} }{ \sqrt{11} + \sqrt{13} }$

$\frac{2( \sqrt{11} + \sqrt{13} )}{11 - 13}$

$- ( \sqrt{11} + \sqrt{13} )$