Express `(1-2i)^(-3)` in the standard form `a+i bdot`

Explanation

To express \((1-2i)^{-3}\) in the standard form \(a + ib\), we can follow these steps:

### Step 1: Rewrite the expression
We start with the expression:
\[ (1 - 2i)^{-3} \]
Using the property of negative exponents, we can rewrite this as:
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