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The root symbol (√ ) is used to represent the square root of any number. For example, the square root of 2 is represented by √2. Similarly, for other natural numbers, such as 5, 6, 7, 8, 10, etc. we can denote the square roots for them as √5, √6, √7, √8, and √10, respectively.
The Square Root Symbol. This is the special symbol that means "square root", it is like a tick, and actually started hundreds of years ago as a dot with a flick upwards. It is called the radical, and always makes mathematics look important! We can use it like this: we say "square root of 9 equals 3" Example: What is √36 ?
A square root is a number that can be multiplied by itself to give us the value under the radical symbol (also referred to as the radix). A square root is denoted as follows: In the figure above, z is the square root of x. We can also write this as "z raised to the power of 2 is equal to x" as follows: z 2 = x.
