Exercice 1

Exercice 4

Exercice 18A

Exercice 18B

Exercice 20A

Exercice 20B

Exercice 25A

Exercice 25B

Exercice 25C

Exercice 32A

Exercice 32B

Exercice 32C

Exercice 39A

Exercice 39B

Exercice 39C

Exercice 39D

Exercice 41A

Exercice 41B

Exercice 43A

Exercice 43B

Exercice 46

Exercice 48A

Exercice 48B