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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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