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Sagot :

CATALINA14
1. A= 1,78 x 10^5
2. B= 5,69 x 10^-3
3. C=1,3259 x 10^2
4. D= 1,256 x 10^0
TREX621

Réponse:

Exo 77:

A) 178×10^3

B)569×10^(-3)

C) 13259×10^(-2)

D)1256×10^(-3)

Exo 78:

E) 3,56×10^2 × 10^4 = 3,56 × 10^6

F) 45×10^(-3) × 10^(-3) = 45 × 10^(-6)

G) 7,8 × 10 × 10^(-5) = 7,8 × 10^(-4)

H) 125 × 10^(-5) × 10^7 = 125×10^2

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