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A number will have both a positive and negative square root 5 x 5 = 25 and -5 x -5 = 25.

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โˆ™ 2013-05-07 23:20:37
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Q: What is the definition of principal square root?
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Related questions

What is a principal square root?

The principal square root is the non-negative square root.


What is the difference between principal square root and perfect square root?

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.


What is the principal square root of 9?

The principal square root of 9, the positive integer which is the square root of the number, is 3.


What is the principal square root of 225?

The principal (positive) square root of 225 is 15.


What is a principal roots?

The principal root is the positive square root.


What is the princpal of a square root?

the principal root is the positive square root.


What do you call the nonnegative square root?

The principal square root.


What is the principle square root of 10000?

The principal square root is 100.


Is a nonnegative square root called a principal square root?

Yes.


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.


Every positive number has two square roots what are they?

The principal square root is a positive number which, when multiplied by itself, gives the original number. The second square root is the negative of the principal square root. So, for example, starting with 144. The principal square root is 12 because 12*12 = 144 and the second square root is -12.


What is the square root of a square that has no root?

It's not a square if it has no root. If a number is a square then, by definition, it MUST have a square root. If it did not it would not be a square.


What is the principal root of 49?

The square root of 49 is 7


What is the square root radical expression 100?

The principal square root of 100 is 10.


What square root simplify 15?

The principal square root of 225 simplifies to 15.


What is the the positive square root of a number indicated by the radical sign?

It is the principal square root.


Is 2 a rational square root?

Yes, it is the principal square root of 4, and it is rational.


What is the principal root of -25?

The principal root of a number is the positive real square root of the number - if it exists. Since -25 is negative, it does not have a real square root. Its square roots are the imaginary numbers +/-5i where i is the [imaginary] square root of -1. i is neither positive nor negative and so neither +5i nor -5i is a principal root.


What is the principal square root of x?

Restricting the discussion to real numbers for now. In this case, the square root is only defined for non-negative numbers; the principal square root of a positive number is the POSITIVE square root. For example, both +5 and -5 are square roots of 25, since both - when squared - give you 25. But the positive square root (+5) is called the principal square root, and if you write the square root symbol, that's the number usually meant.


What is the principal root of 121400?

Rounded to two decimal places, the principal square root of 121400 is 348.43.


What is the root of 169?

-13 or +13 are both square root of 169, but we often use the positive square root, 13, as the principal square root.


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 the principal square root of 81?

9


What is the principal square root of 16?

4


What is the principal square root of 14?

3.7416573867739413855837487323165493017560198077787269463037- :)