Les exercices du 5 ème degré

Exercice 1	Exercice 4	Exercice 7	Exercice 10	Exercice 13
Exercice 2	Exercice 5	Exercice 8	Exercice 11	Exercice 14
Exercice 3	Exercice 6	Exercice 9	Exercice 12	Exercice 15