Question

ratinalise the denominator:1/√ 6+√ 5 - √ 11

Answer 1

here is ur answer hope this will help u

Answer 2

1/√6+√5-√11

=1{(√6+√5)+√11)}/{(√6+√5)-√11)}.{(√6+√5)+√11)}

=√6+√5+√11/(√6+√5)^2-(√11)^2

=√6+√5+√11/6+5+2√30-11[using (a+b)^2]

=√6+√5+√11/2√30