Question

6) Calcule as potências

a) (-5)⁻² =

b) (-3)⁻⁴ =

c) (-2)⁻⁵ =

)

3

7

−2

)

2

5

−1​

Answer 1

a) 5 ⁻² = 1/5 ⁻² = 1/25 (forma alternativa: 0,004 , 5 ⁻²)
b) 3 ⁻⁴ = 1/3 ⁻⁴ = 1/81
c) -2 ⁻⁵ = - 1/2 ⁵ = - 1/32