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Important results for square root
\begin{aligned}
\sqrt{ab} = \sqrt{a}\times\sqrt{b} \\
\sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}} = \frac{\sqrt{a}}{\sqrt{b}}\times\frac{\sqrt{b}}{\sqrt{b}} = \frac{\sqrt{ab}}{b}
\end{aligned}
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