Question

What is the answer to 8^-2 =

Answer 1

The answer is

Explanation:

15/44

Answer 2

`\huge\boxed{8^(-2)=(1)/(64)}`

Explanation:

`a^(-n)=(1)/(a^n)\Rightarrow 8^(-2)=(1)/(8^2)=(1)/(8\cdot8)=(1)/(64)`

other examples:

`3^(-1)=(1)/(3^1)=(1)/(3)\\\\4^(-3)=(1)/(4^3)=(1)/(4\cdot4\cdot4)=(1)/(64)\\\\\left((1)/(3)\right)^(-2)=3^2=3\cdot3=9\\\\\left((2)/(5)\right)^(-3)=\left((5)/(2)\right)^3=(5^3)/(2^3)=(125)/(8)`