ex, lnx, ax, logax
Tableau scolaire standard
| Fonction | Dérivé (sur D) | Remarque |
|---|---|---|
| ex | (ex)′=ex | exponentielle « est sa propre » dérivée |
| lnx, x>0 | (lnx)′=x1 | la dérivée est l'hyperbole y=1/x sur (0,+∞) |
| ax, a>0, a=1 | (ax)′=axlna | lne=1 récupère ex |
| logax, x>0 | (logax)′=xlna1 | cas particulier où a=e |
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