In the equation

*n*\(^{2}\) =*N*, the real number*n*whose square is equal to*N*.### Symbols

The square root of *N* is written as \(\sqrt[2]{N}\) and is read as “the square root of *N*“.

### Examples

- If
*x*\(^{2}\) = 100, then \(\sqrt[2]{100}\) = 10, since 10 × 10 = 100. - If
*x*\(^{2}\) = 0,25, then \(\sqrt[2]{0,25}\) = 0.5, since (0.5) × (0.5) = 0.25. - If
*x*\(^{2}\) = \(\frac{1}{4}\), then \(\sqrt[2]\frac{1}{4}\) = \(\frac{1}{2}\), since \(\frac{1}{2}\) × \(\frac{1}{2}\) =\(\frac{1}{4}\)