April 2019 1 112 Report
Exercice 1 A=5x10^2000
______________
20x10^2001
Calculer le nombre A et donner l'écriture scientifique

exercice 2 C= 2- 1/3 D= 4x10^-3x5x10^9
_____________ __________________
(1/2)² 3x10^6
Justifier, en détaillant les calculs que C=D
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