Réponses

2014-04-13T11:47:22+02:00


(25 x 10^6 x 3 x (10^-4)²) / 2 x 10³

= (25 x 3) / 2 x (10^6 x (10^-4)²) x 10³

= 75/2 x (10^6 x 10^-8) / 10³

= 37,5 x 10^-2/10³

= 37,5 x 10^-5

= 3,75 x 10^-4