Question

rationlize the denominator of 1/ 5+2​

Answer 1

Hello Mate!

\frac{1}{ \sqrt{5} + \sqrt{2} } \\ rationalization \\ \frac{1}{ \sqrt{5} + \sqrt{2} } \times \frac{ \sqrt{5} - \sqrt{2} }{ \sqrt{5} - \sqrt{2} } \\ \frac{ \sqrt{5} - \sqrt{2} }{5 - 2} = \frac{ \sqrt{5} - \sqrt{2} }{3}

Hope it helps☺!