aswyalexandria aswyalexandria

07-11-2022
Mathematics

contestada

Bonjours vous pouvez m'aider svp Un=1+(0.5)^n/n et Un+1=nUn+1/2(n+1) et U1=1.5 exprimer Un+1-Unen fonction de n et etudier le sens de variation de la suite. Merci bcp d'avance

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