Stydy sign of derivative function :
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Hello. Originally Posted by dhiab Stydy sign of derivative function : What exactly are you asking for? Just asking for the first derivative? Well [x]'=1 $\displaystyle [ln(|x|)]' = \frac 1 x$ $\displaystyle [e^{-x}]' = - e^{-x}$ Thus $\displaystyle f'(x) = 1 + \frac 1 x - e^{-x}$ Yours, Rapha
hello : Stydy sign now
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