The principal square root.
The unique nonnegative square root of a nonnegative real number. For example, the principal square root of 9 is 3, although both -3 and 3 are square roots of 9.
There are no explicit symbols. The non-negative square toot is called the principal square root.
The square root
The principal square root is the non-negative square root.
a square root
The square root.
The symbol used to indicate a nonnegative square root.
it looks like a check mark. it is called the radical. it looks like this --> √
The principal square root of 9, the positive integer which is the square root of the number, is 3.
A principal square root is any square root that's answer is positive, and a perfect square root is a square root that's answer is an integer.
The principal (positive) square root of 225 is 15.