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# Latex square root symbol

How to write square root symbol in LaTex ?

## Latex square root symbol of x

$\sqrt{x}$


$$\sqrt{x}$$
produces the square root of x.

## Latex square root symbol of fraction a/b

$\sqrt{\frac{a}{b}}$


$$\sqrt{\frac{a}{b}}$$

## Latex cube root symbol

$\sqrt[3]{x}$


$$\sqrt[3]{x}$$

## Latex n-th root symbol of x

$\sqrt[n]{x}$


$$\sqrt[n]{x}$$

## Latex root square samples

The roots of a quadratic polynomial $a x^2 + bx + c$ with
$a \neq 0$ are given by

$\frac{-b \pm \sqrt{b^2-4ac}}{2a}$


$$\frac{-b \pm \sqrt{b^2-4ac}}{2a}$$

The faster you move through space the slower you move through time

$t'=\frac{t}{\sqrt{1-\frac{v^2}{c^2}}}$


$$t’=\frac{t}{\sqrt{1-\frac{v^2}{c^2}}}$$