**TI82** TxtView file generated by CalcText - KouriZ KProbalnKIÿProbalnProbabilités Espérance E(X)=p1.x1+...+pn.xn Variance V(X)=p1.(x1-E(X))²+...+pn.(xn-E(X))² Ecart type Sig(X)=racar.V(X) Prob(A)=(cas favorables)/(cas possibles) Conditionnelle pb(A)=(p(A n B)/(p(B)) ou p(A n B)=p(A).pa(B) ou pa(B)=(p(A n B)/(p(A)) Logarithmes f'(lnx)=1/x (f o u)'=u'x.f' o u (=(u'(x))/(u(x)) ROC = on pose X=lnx équivaut e^X=x Tangente f'(a)(x-a)+f(a) ln(a.b)=lna+lnb ln(1/b)=-lnb ln(a/b)=lna-lnb ln(a^n)=n.lna ln(racar.a)=1/2.lna (x_0)lim (ln(1+x)/(x)=1 (x_+inf)lim (lnx)/(x)=0 (x_0)lim (lnx)=-infÿž£