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Sagot :

MOZI

Bonjour

4⁻² = 1 / 4² = 1/16

0,2⁻⁴ = (1/5)⁻⁴ = 5⁴ = 625

(-2)⁻¹ = 1/(-2) = -1/2

(5/4)⁻³ = (4/5)³ = 4³/5³ = 64/125

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