bonjour
D = 0.52 x 10 ⁻³ x 6 x ( 10)² ³ sur 15 x 10² x 8 x 10 ⁻⁵
= 3.12 x 10 ³ sur 120 x 10 ⁻³
= 0.026 x 10 ⁶ = 2.6 x 10 ⁴
E = 0.3125 + 11 : 16
= 0.3125 + 0.6815 = 1
F = ( 4/3 - 8/7) : ( - 3 + 9/7)
= ( 28/21 - 24/21) : ( - 21/7 + 9/7)
= 4/21 : - 12/7
= 4/21 * - 7/12
= - 28/ 252 = - 1/9
