PDF chapter test TRY NOW

6. Reduce the expression by rationalising it

$\frac{5}{15 + \sqrt{13}}$

$=$ ____________

$\frac{5 (15 + \sqrt{13})}{212}$
$\frac{5 (15 + \sqrt{13})}{13}$
$\frac{5 (15 - \sqrt{13})}{15}$
$\frac{5 (15 - \sqrt{13})}{212}$

Login or Fast registration

Previous exercise

Exit to the topic

Did you find an error?

Register for free to see more content

Register for free to see more content