## Square Root

### The square root of a number is a mathematical operation that gives you a value which, when multiplied by itself, equals the original number

The square root of a number is a mathematical operation that gives you a value which, when multiplied by itself, equals the original number.

Formally, for a non-negative real number x, the square root of x is denoted by the symbol √x or x^(1/2), and it represents the positive number y such that y * y = x.

For example, the square root of 9 is 3 because 3 * 3 = 9. Similarly, the square root of 25 is 5 since 5 * 5 = 25.

It’s important to note that when taking the square root of a positive number, we get both a positive and negative result. However, in most cases, when we mention “the square root,” we usually refer to the positive square root. So, the square root of 9 is 3, not -3.

Additionally, the square root can also be applied to complex numbers, but the concept is a bit more complex, involving imaginary numbers and a different notation.

The square root operation is widely used in various branches of mathematics and has many practical applications in fields like engineering, physics, and finance.

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