Evaluate: `int(x-sinx)/(1-cosx)dx`

Explanation

To solve the integral \( \int \frac{x - \sin x}{1 - \cos x} \, dx \), we will break it down into manageable parts.

### Step 1: Split the Integral
We can separate the integral into two parts:
\[ \int \frac{x - \sin x}{1 - \cos x} \, dx = \int \frac{x}{1 - \cos x} \, dx - \int \frac{\sin x}{1 - \cos x} \, dx \]

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