bonjour
A = 2 075 , 383 x 10 ⁵
A = 2.075383 x 10 ³ x 10 ⁵ = 2.075 383 x 10 ⁸
B = 0. 000 000 37 x 10 ⁴ = 3.7 x 10 ⁻³
B = 30 x 10 ³ : 40 x 10 ⁴
B = 0.75 x 10 ⁻¹
B = 7.5 x 10 ⁻²
je laisse la fraction
