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Sagot :

MAUDMARINE

Bonsoir,

Calculer puis simplifier si nécessaire

On pose a = 2/3 b = -1/2 , calculer a x b

a x b

= 2/3 x - 1/2

= - 2/6

= (2 x - 1) / (2 x 3)

= - 1/3.

FAMILYS

Bonsoir,

[tex] \frac{2}{3} \times \frac{ - 1}{2} = \frac{ - 2}{6} = \frac{ - 1}{3} [/tex]

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