Respuesta :

Answer:

  • 1/4
  • 1/8
  • 1/81

Step-by-step explanation:

The applicable rule of exponents is

  a^-b = 1/(a^b)

For your numbers, ...

  1. 4^-1 = 1/4^1 = 1/4
  2. 2^-3 = 1/2^3 = 1/8
  3. 3^-4 = 1/3^4 = 1/81