Answer
$\sqrt {2}$
Work Step by Step
The given expression is
$=\frac{2}{\sqrt {2}}$
Multiply by $\frac{\sqrt {2}}{\sqrt {2}}$.
$=\frac{2}{\sqrt {2}}\cdot \frac{\sqrt {2}}{\sqrt {2}}$
Use product property of square roots.
$=\frac{2\sqrt {2}}{\sqrt {2\cdot 2}}$
Simplify.
$=\frac{2\sqrt {2}}{\sqrt {4}}$
Use $4=2^2$.
$=\frac{2\sqrt {2}}{\sqrt {2^2}}$
Simplify.
$=\frac{2\sqrt {2}}{2}$
$=\sqrt {2}$
