Bonjour tout le monde jai un dm de maths
Le voici merci en avance:(numero 12 et 14)
Le voici merci en avance:(numero 12 et 14)
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a. 1/2 x 1/2 x 1/2 x 1/2 x 1/2 = 1 / 32
b. 1/4 x 1/4 x 1/4 = 1/16 x 1/4 = 1 / 64
c. 1/-3 x 1/-3 x 1/-3 x 1/-3 = 1 / 81
d. - 1/1,1 x 1/1,1 x 1/1,1 = - 10 / 11 x 10 / 11 x 10 / 11 = - 1000 / ( 11 x 11 x 11 )
= -1000 / ( 121 x 11 ) = - 1000 / 1331
e. 1 / 5
f. 10² = 100
- 1/3 x 1/3 x 1/3 x 1/3 = -1 / 81
g. (-20)² = 20² = 400
A = 2^3 / 5^4 = 2^-3 x 5^-4 (^ = exposant)
B = 5^2 / 2^3 = 5^2 x 2^-3
C = 2 / ( 3 x 7 ) = 2 x 3^-1 x 7^-1
D = 1 / ( 7^2 x 2^5 x 3^3 ) = 7^-2 x 2^-5 x 3^-3