Find the modulus of `(2+3i)/(1-2i)`

Explanation

To find the modulus of the complex number \( z = \frac{2 + 3i}{1 - 2i} \), we will follow these steps:

### Step 1: Rationalize the denominator
To simplify the expression, we multiply both the numerator and the denominator by the conjugate of the denominator. The conjugate of \( 1 - 2i \) is \( 1 + 2i \).

\[ z = \frac{(2 + 3i)(1 + 2i)}{(1 - 2i)(1 + 2i)} \]
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