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Sagot :

VINS

bonjour

2 ⁻³ =  1 /2 ³  = 1 /8

4 ⁻³ = 1 /4 ³ = 1 / 64

( - 2 ) ⁻¹ =   ( - 1 /2 ) = - 1 /2

7 ⁻² = 1 / 49

JPMORIN3

bjr

1) lis le rappel

il veut dire que :  1/(2³) = 2⁻³

2⁻³ = 1/(2³) = 1/(2x2x2) = 1/8

2)

a) 4⁻³ = 1/(4³) = 1/ (4x4x4) = 1/64

b) (-2)⁻¹ = 1/(-2)¹ = 1/(-2) = -1/2

c) 7⁻² = 1/(7²) = 1/(7x7) = 1/49

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