Question

Rationalise
the denominatons:
5
2 +√3
-​

Answer 1

$\huge\mathcal{\fcolorbox{cyan}{black}{\pink{ANSWER}}}$

$\frac{5}{2 + \sqrt{3} } \\ \\ = \frac{5}{2 + \sqrt{3} } \times \frac{2 - \sqrt{3} }{2 - \sqrt{3} } \\ \\ = \frac{5(2 - \sqrt{3} )}{ - 1} \\ \\ = \frac{10 - 5 \sqrt{3} } { - 1} \\ \\ = - 10 - 5 \sqrt{3}$