Question

What is 2^-3 as a fraction

Answer 1

Solution below.

Explanation:

The question tests on the concept of indices.

We know the following indices rule:

`{x}^( - y) \\ = \frac{1}{ {x}^(y) }`

Which means by inversing the power, we will multiply the power by -1.

So in the case of this question, we can:

`{2}^( - 3) = \frac{1}{ {2}^(3) } \\ = (1)/(8)`