Integrating Fraction Fractions: Solving \int\frac{x^{2}+2x+1}{x^{2}+1}

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SUMMARY

The integral of the function \(\int\frac{x^{2}+2x+1}{x^{2}+1}\) can be simplified by breaking it down into two parts: \(\frac{x^2 + 1}{x^2 + 1} + \frac{2x}{x^2 + 1}\). The first part simplifies to 1, while the second part can be integrated using the formula for the integral of a logarithmic function, resulting in \(\log(x^2 + 1) + C\). This approach effectively resolves the integration challenge presented in the discussion.

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  • Understanding of integral calculus
  • Familiarity with algebraic manipulation of fractions
  • Knowledge of logarithmic integration techniques
  • Basic proficiency in handling rational functions
NEXT STEPS
  • Study the properties of logarithmic integrals
  • Practice integrating rational functions using partial fraction decomposition
  • Explore advanced techniques in integral calculus, such as integration by parts
  • Review algebraic simplification methods for complex fractions
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Students studying calculus, mathematics educators, and anyone seeking to improve their skills in integrating rational functions.

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Homework Statement


\int\frac{x^{2}+2x+1}{x^{2}+1}

Homework Equations


INTEGRAL OF X=\frac{x^{n+1}}{n+1}
I can't get the integral to work on the left side for some reason.

The Attempt at a Solution


I have completely forgotten how to integrate fractions. I know that "log(x^2+1)+C" would be included in it though I'm not to sure where to go from there.
 
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\frac{x^{2}+2x+1}{x^{2}+1} = \frac{x^2 + 1}{x^2 + 1} + \frac{2x}{x^2+1}
 
snipez90 said:
\frac{x^{2}+2x+1}{x^{2}+1} = \frac{x^2 + 1}{x^2 + 1} + \frac{2x}{x^2+1}

I got it, thanks.
 
Last edited:

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