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OCW Scholar - Single Variable Calculus 19 Online
OpenStudy (anonymous):

Couldn't the derivative of y=|x| be y=|x|/x ?

OpenStudy (anonymous):

Yes, it is, except when x=0.

OpenStudy (anonymous):

left hand derivate=-1 and right hand derivate =1,so not equal so it is differentiable at x=0

OpenStudy (anonymous):

It's, except for x = 0.

OpenStudy (anonymous):

Can someone explain why when deltaX <0 why f(deltaX)/deltaX=-1 ?

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