Question

Rationalize the denominator of $\frac{1}{\sqrt{2}}$.

• A. √2/2
• B. 2/√2
• C. √2/4
• D. 4/√2

Answer 1

The correct option is A

√2/2

$\frac{1}{\sqrt{2}}$

Multiply numerator and denominator by $\sqrt{2}$

$\frac{\sqrt{2}}{\sqrt{2}\times \sqrt{2}}$=$\frac{\sqrt{2}}{2}$