Question

calcule:............​

Answer 1

Resposta:

i) 2⁻⁴ = (1/2)⁴=1/16

j) (-1)⁵= -1

k) (4/5)⁻²= (5/4)²= 25/16

l) (-7)⁻³= (1/-7)³= 1/-343