How do you find this integral?

  • Thread starter asap9993
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  • #1
asap9993
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Homework Statement


the problem is

Find the antiderivative of 1/(1 + cos(x))

Homework Equations





The Attempt at a Solution



I think it requires a trick, but I can't figure it out.
 
Last edited:

Answers and Replies

  • #2
lanedance
Homework Helper
3,304
2
is it a definite integral?
 
  • #3
ehild
Homework Helper
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1,915
Use the relation between cos(x/2)and cos(x).

ehild
 

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