Square Root of a Real Number

Square Root of a Real Number

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 \(\frac{1}{2}\) × \(\frac{1}{2}\) =\(\frac{1}{4}\)

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