Réponses

2012-05-06T18:25:42+02:00
2012-05-06T18:45:38+02:00

B =  (1+2/5) (3/7+17/21)

B = ( 1 + 0.4 ) x ( 0.43 + 0.80 )

B = 1.04 x 1.23

B ~ 1.2792