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# (2x^2-1)/sqrt(x^2+1)

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i need your help to find the primitive for this dériver

(2x^2-1)/sqrt(x^2+1)

Jan 16, 2020

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(2x^2-1)/sqrt(x^2+1)

$$\displaystyle\int\frac{2x^2-1}{\sqrt{x^2+1}}\;dx\\$$

Taken from Wolfram Alpha

https://www.wolframalpha.com/input/?i=int+%28%282x%5E2-1%29%2Fsqrt%28x%5E2%2B1%29%29

Jan 16, 2020