(adsbygoogle = window.adsbygoogle || []).push({}); Y=X^1/2 is the same as Y=+/-sqrt(X) ??

1. The problem statement, all variables and given/known data

This is from a textbook:

Y=X^1/2 is the same as Y=+/-sqrt(X)

2. Relevant equations

3. The attempt at a solution

100^1/2=10

How is 100^1/2=-10 also true?

Thanks.

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# Y=X^1/2 is the same as Y=+/-sqrt(X) ?

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