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14-01-2024
Mathematics

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Le problème dit il peut arriver que le produit de deux multiples de 3 ne soit pas un multiple de 9?

Respuesta :

14-01-2024

Answer:

Ca c'est faux.

Step-by-step explanation:

Explanation in English.

Consider two factors a and b where a = 3*m for some integer m and b = 3*n for some integer n. Then a*b = 3*m*3*n = 3*3*m*n = 9*m*n by the associativity of multiplication.

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