bonjour
A = 14 * 35 * 10 ⁵ * 10 ⁻³ sur 21 * 10 ³
= 490 * 10 ² : 21 * 10 ³
= 490/21 * 10 ⁻¹
= 70 /3 * 10 ⁻¹
B = 35 * 10 ⁻³ * 3 * 10 ⁵ : 21 * 10 ⁻¹
= 105 * 10 ² : 21 * 10 ⁻¹
= 5 * 10 ³
C = 5 * 12 * 10 ⁻³ * 10 ⁶ : 15 * 10 ² * 8 * 10 ⁻⁵
= 60 * 10 ³ : 120 * 10 ⁻³
= 0.5 * 10 ⁶
= 5 * 10 ⁵
D = 3 * 1.2 * 10 ² * 10 ⁻¹² : 0.2 * 10 ⁻⁷
= 3.6 * 10 ⁻¹⁰ : 0.2 * 10 ⁻⁷
= 18 * 10 ⁻³
= 0.018
= 1.8 *10 ⁻²
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bonjour
A = 14 * 35 * 10 ⁵ * 10 ⁻³ sur 21 * 10 ³
= 490 * 10 ² : 21 * 10 ³
= 490/21 * 10 ⁻¹
= 70 /3 * 10 ⁻¹
B = 35 * 10 ⁻³ * 3 * 10 ⁵ : 21 * 10 ⁻¹
= 105 * 10 ² : 21 * 10 ⁻¹
= 5 * 10 ³
C = 5 * 12 * 10 ⁻³ * 10 ⁶ : 15 * 10 ² * 8 * 10 ⁻⁵
= 60 * 10 ³ : 120 * 10 ⁻³
= 0.5 * 10 ⁶
= 5 * 10 ⁵
D = 3 * 1.2 * 10 ² * 10 ⁻¹² : 0.2 * 10 ⁻⁷
= 3.6 * 10 ⁻¹⁰ : 0.2 * 10 ⁻⁷
= 18 * 10 ⁻³
= 0.018
= 1.8 *10 ⁻²