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yes, a positive square root is any positive number which is found as an answer when rooting a number.

additional. The square root of any positive number will itself be positive.

To complete the picture, the square root of a positive number is considered to be either positive or negative; for both answers would give a positive number when squared.

The square root of a negative number is slightly more difficult, for that requires to find the square root of -1. Which is considered to be i. So i2 = -1.

This concept is of quite important practical value in electrical engineering, but is not met with in ordinary life.

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Q: Is there such thing as a positive square root?
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Is the square root of any real number always positive?

The square root of a real number is not always positive. The square root of any positive number is positive, the square root of zero is zero (not positive), and the square root of a negative number is complex (i.e. neither positive nor negative). The square root of 16 = -4 or 4. The square root of 0 = 0 The square root of -16 = -4i or 4i


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The square root of a positive number results in a positive number. For example, the square root of 25 is 5. * * * * * Not true! There are two real square roots for every positive number: one positive and one negative. -5 is as much a square root of 25 as +5 is. However, the positive root is the principal root and so is often presented as the only root.


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