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Sagot :

VINS

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A = 1 974  =  1.974 x 10 ³

B = 0.000 13 = 1 .3 x 10 ⁻⁴

C = 763 x 10 ⁻¹³  = 7.63 x 10 ² x 10 ⁻¹³  = 7.63 x 10 ⁻¹¹

D =  4 x 10 ⁻⁹

E = 5  x 10 ⁻⁶

14 x 10 ⁻⁹  :  2 x 10 ⁻⁶  = 7 x 10 ⁻³  

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