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$\begingroup$

Just wondering, it's been a long time since high school math for me. The the expression below make sense?

I have my doubts because I remember the laws of radicals saying something about division that contradicts the below.

$$ \sqrt{x} \cdot \sqrt{z/w} = \sqrt{(xz)/w} $$

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    could always be both.2012-04-12

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