Question

Rationalise the denominator of √7 / √5-√6

Answer 1

$\frac{ \sqrt{7} }{ \sqrt{5} - \sqrt{6} } \\now \: we \: multiply \: by \: denomenator \: in \: \\ both \: numerator \: and \: denomenator \\ \frac{ \sqrt{7} }{( \sqrt{5} - \sqrt{6} )} \times \frac{ \sqrt{5 } + \sqrt{6} }{ \sqrt{5} + \sqrt{6} } \\ \frac{ \sqrt{7 } \times ( \sqrt{5} + \sqrt{6} )}{( \sqrt{5} - \sqrt{6} )( \sqrt{5} + \sqrt{6} ) } \\ \frac{ \sqrt{35} + \sqrt{42} }{(5 - 6 )} \\ \frac{ \sqrt{35} + \sqrt{42} }{(-1)} \: \: answer \:$

I hope that helps you..........

Answer 2

Answer:

Step-by-step explanation: