I am trying find were X is not differentiable when f(x)=x^1/3.

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- March 13th 2008, 07:39 AM #1

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- March 13th 2008, 07:54 AM #2

- March 13th 2008, 10:13 AM #3

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- March 19th 2008, 06:57 PM #4

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