Respuesta :

Answer:

Step-by-step explanation:

9³ × 9⁻¹ = 9³⁻¹ = 9²

Answer:

[tex] {9}^{ - 3} \times {9}^{ - 1} = {9}^{( - 3 - 1)} = {9}^{ - 4} =\boxed{\frac{1}{ {9}^{4} }}✓ \\ [/tex]

1/9⁴ is the right answer.