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I have question about one integral

  • Thread starter igoriance
  • Start date
  • #1
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The Attempt at a Solution



Thanks in advance for your help...


∫[1/(1+x^2)^2] dx
 

Answers and Replies

  • #2
rock.freak667
Homework Helper
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What did you try?

Did you try integration by parts, substitution?
 
  • #3
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I managed to get it by using substitution and then parts. Try making u=1/(1+x^2) and then when you get du, use u=1/(1+x^2) to solve for x to replace x with u. After that, use parts. Hope that helps I can give a more detailed answer if you still are having trouble.
 
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