Question

Rationalise $\sqrt{2}+\sqrt{3}$

• A. $0$
• B. $-1$
• C. $1$
• D. $5$

Answer 1

The correct option is B

$-1$

Rationalising factor of $\sqrt{2}+\sqrt{3}$ is $\sqrt{2}-\sqrt{3}$

So, rationalising $\sqrt{2}+\sqrt{3}$, we get

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