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Topic: differntiating inside an integral /moving outside the integral
Replies: 12   Last Post: Oct 4, 2007 9:16 AM

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Registered: 12/6/04
Re: differntiating inside an integral /moving outside the integral
Posted: Sep 28, 2007 5:43 PM
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Differentiability implies continuity (though the converse is not true.)

"Fallingeagle" <falling_eagle1@hotmail.com> wrote in message


> thanks, but look at
> http://en.wikipedia.org/wiki/Leibniz_integral_rule
> in proof one, can you see why df/dx need to be continuous ?
> I understand f has to be differensiable, why do one need to assume f
> and f' cont. ?

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