Square Root
A square root is a mathematical operation that, when applied to a non-negative real number, returns a value that, when multiplied by itself, gives the original number. The square root of a number x is denoted as √x. For example, the square root of 9 is 3 because 3 multiplied by 3 equals 9. Square roots can be both positive and negative, but typically only the positive square root is used in mathematical calculations.
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