Question

rationalise the denominator of 1/(5+3√2)

Answer 1

this the answer in the image

Answer 2

$\frac{1}{5+3\sqrt{2}}$
$\frac{1}{5+3\sqrt{2}}$ × $\frac{5-3\sqrt{2}}{5-3\sqrt{2}}$
$\frac{5-3\sqrt{2}}{25-18}$
$\frac{5-3\sqrt{2}}{7}$