**TI82** TxtView file generated by CalcText - Kouri FEXPON2Fonction Exp - Formulesf'(x)=f(x) et f(0)=1 exp(a+b)=exp(a)*exp(b) exp(-a)=1/exp(a) exp(a-b)=exp(a)/exp(b) exp(n*x)=[exp(x)]^n exp(n)=[exp(1)]^n e=exp(1)=2,718 exp(x)=e^x fonct exponent est : - strictement croiss - strictement positive a x^a>x^b a=b --> x^a=x^b x>0 --> e^x>1 e^x>x lim(+oo)e^x=+oo lim(-oo)e^x=0 lim(0)(e^x-1)/x=1 lim(+oo)(e^x)/x=+oo lim(-oo)xe^x=0 f(x)=exp(u(x)) drivable sur I f'(x)=[e^u(x)]'=e^u(x)*u'(x)@