BONJOUR! calculer en detaillant et simplifier si possible: A = -2/3 + 5/3 * -7/5 B = -2/3 * ( 4/5 - -3/20)
Mathématiques
dinah
Question
BONJOUR! calculer en detaillant et simplifier si possible:
A = -2/3 + 5/3 * -7/5
B = -2/3 * ( 4/5 - -3/20)
A = -2/3 + 5/3 * -7/5
B = -2/3 * ( 4/5 - -3/20)
1 Réponse
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1. Réponse winner123
a = - 2/3 - 35/15
a = - 10/15 - 35/15 = - 45/15 = - 3
b = - 2/3 * ( 16/20 + 3/20)
b = - 2/3 * 19/20 = - 38/60 = - 19/30