Question

Rationalize the denominator of
1
V2 + 5
ha​

Answer 1

Answer:

$\frac{1}{ \sqrt{2} + 5} = \frac{1}{ \sqrt{2} + 5 } \times \frac{ \sqrt{2} - 5 }{ \sqrt{2} - 5 } = \frac{ \sqrt{2} - 5 }{2 - 5} = - \frac{ 1}{3} ( \sqrt{2} - 5)$