Question

Show that reciprocal of 5+2√3 is an irrational no.

Answer 1

$\frac{1}{5 +2 \sqrt{3} }$
multiple by consegative by
$5 - 2\sqrt{3}$
$\frac{5 - 2\sqrt{3} }{13}$
yes we feel that it is irrational no.

Answer 2

Answer:

please check it out teh attachment