1. Jun 27, 2011 #1

   asap9993

   

   1. The problem statement, all variables and given/known data
   the problem is
   
   Find the antiderivative of 1/(1 + cos(x))
   
   2. Relevant equations
   
   
   
   3. The attempt at a solution
   
   I think it requires a trick, but I can't figure it out.

    

   Last edited: Jun 27, 2011

   asap9993, Jun 27, 2011
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3. Jun 27, 2011 #2

   lanedance

   

   Homework Helper

   is it a definite integral?

    

   lanedance, Jun 27, 2011
4. Jun 27, 2011 #3

   ehild

   

   Homework Helper

   Use the relation between cos(x/2)and cos(x).
   
   ehild

    

   ehild, Jun 27, 2011

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