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Sagot :

VINS

bonsoir

789 x 10 ⁴ = 7.89 x 10 ² x 10 ⁴ = 7.89 x 10 ⁶

0.003 x 10 ⁶ = 3 x 10 ⁻³ x 10 ⁶ = 3 x 10 ³

0.67 x 10 ⁻³ = 6.7 x 10 ⁻¹ x 10 ⁻³ = 6.7 x 10 ⁻⁴

12.8 x 10 ⁻¹ = 1.28 x 10 x 10 ⁻¹ = 1.28 x 10 ⁰ = 1.28 x 1 = 1.28

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