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Mathematics 17 Online
OpenStudy (anonymous):

Prove \(\sqrt{x^2}\) = |x| for any x \(\in\) R (R is the set of real numbers. I don't know how to type that in latex, sorry!)

OpenStudy (anonymous):

If x is a negative number then, |dw:1346931427362:dw| THUS, when x is negative|dw:1346931477416:dw|

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