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THEBRAIN11
@THEBRAIN11
May 2019
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Bonjour j'aurais bien voulu que vous m'aidez à faire ces exercices et merci d'avance pour vous
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Bonjour.
si je comprends bien ton exercice, on dit que a*b = 4/5 et il faut calculer les 3 expressions écrites en-dessous.
-5a * 4b = (-5*4)*ab = -20*4/5 = -16.
(a * -15/2)*b = -ab*15/2 = -(4/5)*(15/2) = -60/10 = -6.
4b * (-25a/16) = -100ab/16 = -100*4 / (5*16) = -20*4/16 = -20/4 = -5.
bonne journée.
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si je comprends bien ton exercice, on dit que a*b = 4/5 et il faut calculer les 3 expressions écrites en-dessous.
-5a * 4b = (-5*4)*ab = -20*4/5 = -16.
(a * -15/2)*b = -ab*15/2 = -(4/5)*(15/2) = -60/10 = -6.
4b * (-25a/16) = -100ab/16 = -100*4 / (5*16) = -20*4/16 = -20/4 = -5.
bonne journée.