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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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Darrell

Posts: 251
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
news:1191013403.745366.267250@n39g2000hsh.googlegroups.com...

<...>

>
> 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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