I get confused when it is 'ok' to use the natural logarithm when integrating a function. As soon as I see a denominator, I am always tempted to simply go 'ln(denominator)/d denominator)' but this is clearly wrong....(adsbygoogle = window.adsbygoogle || []).push({});

Is it wrong in situations where you have a polynomial denominator? For example

Integral 1/(x^2 + 2x + 5) dx... would this be ln(x^2 + 2x + 5) / 2x + 2?

**Physics Forums - The Fusion of Science and Community**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# When to use 'ln' in integration?

Loading...

Similar Threads - 'ln' integration | Date |
---|---|

B Calculate the expression of the antiderivative | Feb 19, 2018 |

Differentiation of e^(-x) / ln(x) | Aug 6, 2015 |

Is ln(N-K) equal to ln(1-N/K);different approach different result,why? | Jul 14, 2013 |

PDE 2Ux + 3Uy + U = 0 with change of variables V(x,y)=ln[U(x,y)] | Sep 14, 2009 |

(ln x)(ln x) | Aug 3, 2008 |

**Physics Forums - The Fusion of Science and Community**