Vous pouvez m'aider svp je comprends rien :(

Réponse :

bonjour

A = 5 ⁻⁴ = 1 / 625

B = ( 2/3 )⁴ = 16/81

C = ( 2/3 ) ⁻⁴ =  81 /16

D = 7 ² x 7 ⁵ = 7 ⁷

E = ( - 3 ) ⁻⁷ x ( - 3 )² = ( - 3 ) ⁻⁵

F = 5 ⁵/5² = 5 ³

G = 4² / 4 ⁻⁵ = 4 ⁷

H = ( 10 ³)² = 10 ⁶

I = ( 10 ⁻²) ⁵ = 10 ⁻¹⁰

J = 7 ⁶ x 9 ⁶ = 63 ⁶

K = ( - 8 ) ⁹ x ( - 5 ) ⁹ = 40 ⁹

250 = 2.5 x 10 ²

0.54 = 5.4 x 10 ⁻¹

0.0128 = 1.28 x 10 ⁻²

5 423 900 = 5.423900 x 10 ⁶

S = 0.45

T = 0.000 078

U = 5.457

V = 55 398 000