Question

rationalise the denominator of 1/√5-1​

Answer 1

Answer:

√4/4

Step-by-step explanation:

1/√4 × √4/√4 = √4/4

Answer 2

Answer:

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

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

$\frac{ \sqrt{5} + 1}{5 - 1} = \frac{ \sqrt{5} + 1 }{4}$