Evaluate `int(x^(2) -cosx+(1)/(x))dx`

Explanation

To evaluate the integral \( \int (x^2 - \cos x + \frac{1}{x}) \, dx \), we will break it down into simpler parts and integrate each term separately.

### Step-by-Step Solution:

1. **Set Up the Integral**:
\[ I = \int (x^2 - \cos x + \frac{1}{x}) \, dx \]
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