# Square root(√x) symbol in LaTeX

Symbol/Unicode Square root/U+221A
Type of symbol Mathematics
Package (requirement) No
Argument yes, x
Latex command \sqrt{x}
Example \sqrt{x} → √x

Many times in mathematical equations we need a Square root symbol, it is very easy to use in latex. To print this symbol in a latex document you need to use \sqrt{arg} command and also pass an argument with it.

\documentclass{article}
\begin{document}
$$\sqrt{x}$$
$$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$$
$$\frac{12}{\sqrt{15}-\sqrt{7}}\cdot\frac{\sqrt{15}+\sqrt{7}}{\sqrt{15}+\sqrt{7}}$$
\end{document}

Output :