导数公式和微分公式 (1)(C)′=0 d(C=0 (2)(xa '=axa-I d(xa=axra-Idx (3)(ogax)= ina ddoga x)=dx n r d (n x)= ((ar)'=alna d(a=a lnadx (er=at d(e=edx一、导数公式和微分公式 (1) (C)=0 d(C)=0 (2) (x )=x −1 d(x )=x −1dx x a a x ln 1 (3)(log ) = x a dx d a x ln (log ) = x x 1 (ln ) = x dx d(ln x) = (4) (a x )=a x lna d(a x )=a x lnadx (e x )=a x d(e x )=e xdx