Réponses

2014-09-04T20:21:12+02:00
Bonsoir

H = (8 x (10^-2)^3 x 2) / (25 x 10^-4)

H = (8 x 2) / 25    x        (10^(-6+4)
H = 16/25  x    10^-2
H = 0,64 x 10^-2
H = 6,4 x 10^-3
2014-09-04T21:09:51+02:00
Bonsoir

G = 13/2 x 10³ = 6.5 x 10³ = 6500
écriture scientifique = 6.5 x 10³

H = 16 x 10⁻⁶ sur 25 x 10⁻⁴
H = 0.64 x 10⁻²
H = 0,0064
H = 6.4 x 10⁻³