Question

Find the exact values of the following, giving your answers as fractions

a) 4^-1
b) 2^-3
c)3^-4

Answer 1

>> Answer

________

`\:`

• Number (A.)

`{4}^( - 1) = ...`

`= \frac{1}{ {4}^(1) }`

`= \bold{ (1)/(4)}`

.

• Number (B.)

`{2}^( - 3) = ...`

`= \frac{1}{ {2}^(3) }`

`= (1)/(2 * 2 * 2)`

`= \bold{ (1)/(8)}`

.

• Number (C.)

`{3}^( - 4) = ...`

`= \frac{1}{ { 3}^(4) }`

`= (1)/(3 * 3 * 3 * 3)`

`= \bold{ (1)/(81)}`

Answer 2

a, 1/4

b, 1/2^3=1/8

c, 1/3^4=1/81