Réponse :
Explications étape par étape :
Bonjour,
A = 2^5 X 2^(3-9) = 2^5 X 2^-6 = 2^-1 = 1/2
B = 3^4 / (2X3)^4= 3^4 / (2^4 X 3^4)=1/2^4 = 2^-4
C = (5^7 X 3^9) / (3^7 X 5^8)= 5^7-8)X 3 ^9-7) = 5^-1 X 3^2 = 3^2 / 5
D = 3^-2/3^12=3^(-2-12)= 3^-14 = 1/3^14
E = (pi X 2^3) / 2^2 = pi X 2^3-2) =pi X 2^1 = 2pi
F = 7^-6 / (7^-4 X 7^2) = 7^-6 / 7^-2 = 7^(-6 +2) = 7^-4= 1 /7^4
