bonsoir
P 1
x
3 x
3x - 1.01
si on prend 0.7 = 3 * 0.7 - 1.01 = 2.1 - 1.01 = 1.09
P 2
x
x + 5.6
0.01 ( x + 5.6 )
= 0.01 x + 0.056
si on prend 0.7 = 0.01 * 0.7 + 0.056 = 0.007 + 0.056 = 0.063
x
x + 4.2
20 ( x + 4.2 )
= 20 x + 84
sofiane = 5.29 x 10 + ( 78 x 0.01 )
= 52.9 + 0.78 = 53.68
G = 16 + 7.5 + 4.8 = 28.3