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 :

Square root use in latex output.

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