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Sagot :

VINS

bonjour

R =  12 x 10 ³ = 12 000 = 1.2 x 10 ⁴

S = 1 200 x 10 ⁸ = 1 200 000 000 00 = 1.2 x 10 ¹¹

T = 105 x 10 ² : 21 x 10 ⁻¹

t = 5 x 10 ³  = 5 000

U = 2 079 x 10 ⁷ : 19.8 x 10 ¹³

U = 105 x 10 ⁻⁶

U 0. 000 105 = 1.05 x 10 ⁻⁴

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