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Sagot :

Bonjour,

Exercice 30 :

A = 2 B = 0.5 C = -1 D = 1.5 E = -2.5

Exercice 31 :

A = -1.5 B = -1.3 C = -0.9 D = -1.8 E = -2.1

Exercice 32 :

A = -0.5 B = -2 C = 1 D = 0.25 E = -1.7

Exercice 33 :

A = 0.5 B = -0.75 C = -1.25 D = -0.25 E = -2

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