Question

Rationalise the denominator
(I) 3/√5
ii) 1/√3-√2​

Answer 1

Step-by-step explanation:

i)

$3 \div \sqrt{5}$

(3/root 5)× (root5 / root 5)

= 3root5 / (root 5)^2

=3 root 5 / 5

$3 \sqrt{5} \div 5$

ii)

$1 \div \sqrt{3} - \sqrt{2}$

$(1 \div \sqrt{3} - \sqrt{2} ) \div ( (\sqrt{3} \ + \sqrt{2} ) \div \sqrt{3} + \sqrt{2} ))$

((root 3 + root 2)/( 3- 2))