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roxmalicdem
Give me some problem about absolute value differentiation
This might help: http://www.sinclair.edu/centers/mathlab/pub/findyourcourse/worksheets/Calculus/DerivativesInvolvingAbsoluteValue.pdf
\[\frac d{dx}|f(x)|=\frac{f'(x)}{|f(x)|}\]
i think i recalled that a little off
|x|'=x/|x| so that cant be a good recollection :)
\[\frac{f(x)}{|f(x)|}f'(x)\] that might be it