Square Root -- from Wolfram MathWorld
https://mathworld.wolfram.com/SquareRoot.html
WebApr 13, 2024 · A square root of is a number such that . When written in the form or especially , the square root of may also be called the radical or surd . The square root is therefore an n th root with . Note that any positive real number has two square roots, one positive and one negative. For example, the square roots of 9 are and , since .
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