Question

Rationalise the denominator of:
(i) $\frac{1}{2-\sqrt{3}}$

• A. $2+\sqrt{7}$
• B. $2+\sqrt{2}$
• C. $2+\sqrt{3}$
• D. $2+\sqrt{5}$

Answer 1

Answer: (C)

$2+\sqrt{3}$

$Multiplyinganddividingby2+\sqrt{3}:\frac{(2+\sqrt{3})}{(4-3)}=2+\sqrt{3}$