calcule r et détails les calcule svp

a) 4 ⁻³ = 1 /4³ = 1/64

b) ( -2)⁻⁵ =  - 1/32

c) 3 ⁻⁴ = 1/27

d) (-10)⁻⁴ = - 1/10000

e) ( - 0.2)⁵ = - 0,00032

f) (1/4)⁵ = 1/1024

g) ( - 2/3) ²  = 4/9

h ) (3/4)⁵ = 243/1024

i) (-2/5)⁴ = 16/625