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Sagot :

AYUDA

bjr

j'aurais dit :

1 million = 10⁶

1 milliard = 10⁹

1 millième = 10⁻³

donc = 5 x 10⁶ x 10⁹ x 10⁻³ = 5 x 10⁶⁺⁹⁻³ = 5 x 10¹²

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