Evaluate: `int1/(sqrt(x^2-4x+2))\ dx`

Explanation

To evaluate the integral \( \int \frac{1}{\sqrt{x^2 - 4x + 2}} \, dx \), we can follow these steps:

### Step 1: Simplify the expression under the square root
First, we need to rewrite the expression \( x^2 - 4x + 2 \) in a more manageable form. We can complete the square for the quadratic expression.

\[ x^2 - 4x + 2 = (x^2 - 4x + 4) - 2 = (x - 2)^2 - 2 \]
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