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January 4th, 2010, 01:10 AM  #1 
Member Joined: Jul 2009 Posts: 88 Thanks: 0  no differentiable function.....
Prove that there is no differentiable function such that 
January 14th, 2010, 04:50 AM  #2 
Member Joined: Aug 2007 Posts: 42 Thanks: 4  Re: no differentiable function.....
Use the mean value theorem over an interval of length no less than 1.


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