Question

Rationalise the denominator of 1/√5-2

Answer 1

$\frac{1}{ \sqrt{5} - 2}$

$\frac{1}{ \sqrt{5} - 2} \times \frac{ \sqrt{5} + 2}{ \sqrt{5} + 2 }$

$\frac{ \sqrt{5} + 2 }{5 - 4}$

$\frac{ \sqrt{5} + 2}{1}$