Réponse :
Explications étape par étape
Bonjour
A = (10^9 x 6^3)/(25^4 x 3 x 2^11)
A = [(2 x 5)^9 x (2 x 3)^3] / [(5 x 5)^4 x 3 x 2^11]
A = 2^(9+3-11) x 5^(9-4-4) x 3^(3-1)
A = 2^1 x 5^1 x 3^2
A = 2 x 5 x 3^2
B = 1/10^118 - 1/10^119
B = (10^119 - 10^118)/(10^118 x 10^119)
B = (10^119 - 10^118)/(10^(118+119)
B = 10^118(10 - 1)/(10^237)
B = 9 x 10^118/10^237
B = 9 x 10^(118-237)
B = 9 x 10^(-119)
C = 5^108 x 2^106 x 11 x ... ????
