Réponse :
Explications étape par étape
Bonjour
T = (10^(-8) x 0,7 x 10^12) / (21 x 10^3)
T = (0,7/21) x 10^(-8+12-3)
T = [7/(10 x 3 x 7)] x 10^(-11+12)
T = 1/30 x 10^1
T = 10/30
T = 1/3
U = (24 x 10^2 x 3,5 x 10^5) / (8 x 10^(-1) x 21 x 10^4)
U = (24 x 3,5)/(8 x 21) x 10^(2+5+1-4)
U = (3 x 8 x 7)/(8 x 3 x 7 x 2) x 10^(8-4)
U = 1/2 x 10^4
U = 10000/2
U = 5000
V = (4 x (10^(-2))^3 x 10^2) / (12 x 10^(-3))
V = (4/12) x 10^(-2*3+2+3)
V = 1/3 x 10^(-6+5)
V = 1/3 x 10^(-1)
V = 1/3 x 1/10
V = 1/30
W = (1,5 x 10^(-5) x (2 x 10^3)^2) / (0,14 x 10^2)
W = (1,5 x 2^2 / 0,14) x 10^(-5+3*2-2)
W = [(3 x 2 x 2 x 100)/(2 x 7 x 2)] x 10^(-7+6)
W = (300/7) x 10^(-1)
W = 300/7 x 1/10
W = 300/10 x 1/7
W = 30 x 1/7
W = 30/7
