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Earn +20 ptsQ: What is the principal square root of 9?
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How do you reverse a square root?
The opposite of a square root is the square of a number. For example, the principal square root of 81 is 9, while the square of 9 is 81.
What is a principal square root?
The principal square root is the non-negative square root.
What is the principal square root of 225?
The principal (positive) square root of 225 is 15.
The nonnegative square root of a number?
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.
What would be of the square root of a number if there is no sign in front of the square root symbol?
If unspecified, the square root is the principal root, which is the positive root.
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