Evaluate: `int(sin("ln"x))/(x)`dx

Explanation

To evaluate the integral \( I = \int \frac{\sin(\ln x)}{x} \, dx \), we can follow these steps:

### Step 1: Substitution
Let \( t = \ln x \). Then, differentiating both sides gives us:
\[ dt = \frac{1}{x} \, dx \quad \Rightarrow \quad dx = x \, dt \]
Since \( x = e^t \), we can substitute \( dx \) in terms of \( t \):
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