Réponse :
Explications étape par étape
Bonjour
10^7/10^2 = 10^(7-2) = 10^5
10^9/10^3 = 10^(9-3) = 10^6
10^10/10^5 = 10^(10-5) = 10^5
10^6/10^9 = 10^(6-9) = 10^(-3)
Exercice 2 :
10^3 x 10^3 = 10^(3+3) = 10^6
10^3 x 10^4 = 10^(3+4) = 10^7
10^3 x 10^5 = 10^(3+5) = 10^8
10^5 x 10^7 = 10^(5+7) = 10^12
10^7 x 10^7 = 10^(7+7) = 10^14
10^8 x 10 = 10^(8+1) = 10^9
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Réponse :
Explications étape par étape
Bonjour
10^7/10^2 = 10^(7-2) = 10^5
10^9/10^3 = 10^(9-3) = 10^6
10^10/10^5 = 10^(10-5) = 10^5
10^6/10^9 = 10^(6-9) = 10^(-3)
Exercice 2 :
10^3 x 10^3 = 10^(3+3) = 10^6
10^3 x 10^4 = 10^(3+4) = 10^7
10^3 x 10^5 = 10^(3+5) = 10^8
10^5 x 10^7 = 10^(5+7) = 10^12
10^7 x 10^7 = 10^(7+7) = 10^14
10^8 x 10 = 10^(8+1) = 10^9