Question

All of the following expressions are equal except2^-31/8 2^1/2^48

Answer 1

(D)8

Step-by-step explanation:

`\begin{gathered} 2^(-3)=(1)/(2^3)=(1)/(8) \\ (2^1)/(2^4)=(2)/(16)=(1)/(8) \end{gathered}`

Therefore, every of the option is equal to 1/8 except 8.

The correct choice is D.