Réponses

2012-09-09T17:33:05+02:00

600x10*-5/0,02*-7

=6x10*-3/0,02x10*-7

=0,12x10*4

2012-09-09T18:28:50+02:00

600x10^-5 / 0,02x10^-7

= 600x10^-5 x 0,02x10^7

= 6x10^-3 x 2x10^5

= 12x 10^2

= 1,2 x 10^3