Question

Please answer it before 9 am.

Answer 1

Rationalize the denominator.
$\frac{1}{3-√8} Multiply 3+√8 both in numerator and denominators$
We get,
$\frac{3+√8}{(3-√8)(3+√8}$
(3+√8)/9-8= 3+√8




$\frac{1}{5+2√3}$
Multiply 1/5-2√3 both in numerator and denominator we have,
$\frac{5-2√3}{(5+2√3)(5-2√3)}$
We get (5-2√3)/25-12= 5-2√3/13