Integrate the functions`(sqrt(x^2+1)[log(x^2+1)-2logx])/(x^4)`

Explanation

To solve the integral

\[ \int \frac{\sqrt{x^2 + 1} \left( \log(x^2 + 1) - 2 \log x \right)}{x^4} \, dx, \]

we will follow these steps:

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