Réponse :
EX1
A = 8^7 x 8^4 = 8^11
B = (12^3)^5 = 12^15
C = 7^4 x 5^4 = (7 x 5)^4 = 35^4
D : illisible
E = 5^-9 x 5^4 = 5^-5
F = (9^-2)^4 = 9^-8
G et F illisibles
EX2 : écriture scientifique
A = 1250 000 = 1.25 x 10^6
B = 0.0059 = 5.9 x 10^-3
C = 350.8 x 10^4 = 3.508 x 10^6
D est illisible
ex3
A = 4 x 3^4 + (4 x 3)^4 = 4 x 3^4 + 4^4 x 3^4 = 4 x 3^4(1+4^3) = 324(1+64) = 21060
B = rac(60 - 60) = 0
C : est illisible
Explications étape par étape
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Réponse :
EX1
A = 8^7 x 8^4 = 8^11
B = (12^3)^5 = 12^15
C = 7^4 x 5^4 = (7 x 5)^4 = 35^4
D : illisible
E = 5^-9 x 5^4 = 5^-5
F = (9^-2)^4 = 9^-8
G et F illisibles
EX2 : écriture scientifique
A = 1250 000 = 1.25 x 10^6
B = 0.0059 = 5.9 x 10^-3
C = 350.8 x 10^4 = 3.508 x 10^6
D est illisible
ex3
A = 4 x 3^4 + (4 x 3)^4 = 4 x 3^4 + 4^4 x 3^4 = 4 x 3^4(1+4^3) = 324(1+64) = 21060
B = rac(60 - 60) = 0
C : est illisible
Explications étape par étape
√