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Diapositive 1

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ln (e x) = x ln e = x. y = e x. x = ln y. e = 2,71828. Fonction exponentielle. Logarithme vulgaire ou d cimaux. y = log x. x = 10 y. log x = ln x . log e. log x = 2,3 ln x ... – PowerPoint PPT presentation

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Title: Diapositive 1


1
Logarithme népérien
Cest la primitive de
qui sannule pour x 1
ln x
Posons ln e 1
e 2,71828
Fonction exponentielle
y e x
x ln y
ln (e x) x ln e x
Logarithme vulgaire ou décimaux
y log x
x 10 y
log e log 2,71828 2,30 259 2,3
log x ln x . log e
log x 2,3 ln x
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