Exercice 1

Exercice 2

Exercice 5

Exercice 6

Exercice 9

Exercice 14A

Exercice 14B

Exercice 16

Exercice 17

Exercice 21A

Exercice 21B

Exercice 21C

Exercice 23

Exercice 27

Exercice 28

Exercice 29

Exercice 31

Exercice 33A

Exercice 33B

Exercice 36A

Exercice 36B

Exercice 38