bonjour, pouvez vous m'aider sur l'exercice 1 , je ne comprend rien..
Merci :)
E=14/15-1/21*1/(9/7-1/(1-1/2))
=14/15-1/21*1/(9/7-2)
=14/15-1/21*1/(-5/7)
=14/15-1/21*(-7/5)
=14/15+7/(21*5)
=14/15+1/15
=15/15
=1
F=(3,5*10^-11*2*10^8)/(0,2*(10^-3)^3)
=(3,5*2)/0,2*10^(-11+8-(-9))
=35*10^6
G=(4*10^6)^-2
=4^-2*10^-12
=1/(4^2)*10^-12
=1/16*10^-12
=0,0625*10^-12
=6,25*10^-14
H=(15*10^-4)/(42*10^-3)
=15/42*10^(-4-(-3))
=5/14*10^-1
=5/140
=1/28