Bonjour
Calculer chaque nombre :
A = 5 x 2^(-1) - 3^(-2)
A = 5 x 1/2 - 1/3^2
A = 5/2 - 1/9
A = (5 x 9)/(2 x 9) - (1 x 2)/(9 x 2)
A = 45/18 - 2/18
A = 43/18
B = 3 x (1 - 3)^5 - 2^2 x (3 : 2)
B = 3 x (-2)^5 - 4 x 3/2
B = -3 x 1/2^5 - 4/2 x 3
B = -3/32 - (2 x 2)/2 x 3
B = -3/32 - 2 x 3
B = -3/32 - 6
B = -3/32 - (6 x 32)/32
B = -3/32 - 192/32
B = -195/32
C = (5 - 2 x 3)^4 / (2 - 3)^5
C = (5 - 6)^4 / (-1)^5
C = (-1)^4 / (-1)
C = 1/(-1)
C = (-1)
