Express of the complex number in the form `a + i b`.
`(-2-1/3i)^3`

Explanation

To express the complex number \((-2 - \frac{1}{3}i)^3\) in the form \(a + ib\), we will use the identity for the cube of a binomial.

### Step-by-Step Solution:

1. **Identify \(a\) and \(b\)**:
We have the expression \((-2 - \frac{1}{3}i)\). Here, we can identify:
- \(a = -2\)
- \(b = \frac{1}{3}i\)
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