Question

1/3+√5
Rationalise this please I will mark as brainliest​

Answer 1

Answer:

$\frac{1}{3 + \sqrt{5} }$

Multiply and divide by 3-√5

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

$= \frac{3 - \sqrt{5} }{ {3}^{2} - {( \sqrt{5}) }^{2} }$

$= \frac{3 - \sqrt{5} }{9 - 5}$

$= \frac{3 - \sqrt{5} }{4}$

Answer 2

Answer:

3 - √5 / 4

Step-by-step explanation:

=1/3+√5 × 3-√5/3-√5

= 3-√5/ (3)² -(√5)²

=3-√5/ 9-5

=3-√5/ 4