<PRE><B>Question 531346</B>
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1.  *[tex \LARGE \sqrt{x^2}\ =\ \left(\sqrt{x}\right)^2\ =\ x\ \forall\ x\ \in\ \mathbb{R}]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
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