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value for root 3 is 1.732
The square root of a value v is a number x such that, x multiplied by x equals v. Note that -x is also a square root.
Since the square root of a number is the "number times itself that equals the original number," it makes sense that the larger the original number, then the larger the square root. The value of the square root of 2 will be greater than the value of the square root of 1.5.
The square root of a negative value is called an imaginary number.
It is denoted by i, and is called the imaginary square root of -1.