SOLUTION: Can you prove that {{{ abs (x) = abs (-x) }}} and {{{ 0 <= abs(x)}}}

SOLUTION: Can you prove that {{{ abs (x) = abs (-x) }}} and {{{ 0 <= abs(x)}}}

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Question 1018486: Can you prove that

and

Answer by ikleyn(52802) (Show Source): You can put this solution on YOUR website!
.
Just proved in
http://www.algebra.com/algebra/homework/absolute-value/absolute-value.faq.question.1018501.html

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