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Sagot :

Réponse :

12 p86:

a. 22 – 5 = 4 – 5 = –1 donc l’image de 2 est –1.

b. 02 – 5 = –5 donc l’image de 0 est -5.

c. h(–5) = (–5)2 – 5 = 25 – 5 = 20.

d. h(8) = 82 – 5 = 64 – 5 = 59.

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