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Article #99

differentiation from first principles

#99
From: sean�doyle
Date: Tue, 05 Feb 2008 13:49
2 lines
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Tried without success to differentiate 1/x from first principles using delta 
x, can anyone help? 
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From: "sean�doyle" <sean.doyle4@virgin.net>
Newsgroups: aus.mathematics
Subject: differentiation from first principles
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