Page 7 - Integration Problems
P. 7

    
                     = 2   − 2   tan(  ) = 2   [1 − tan(  )]
                    
                                         
                                               =     
                                1 − tan(  )


        The integral is

                              /3
                                    1 − tan(  )
                            ∫                             
                                   2  
                                          2
                                    cos (  ) + 1
                            0
                        /3
                           1 − tan(  )                 
                       ∫                  .
                                 + 1       2  [1 − tan(  )]
                       0

                                  1      /3        
                               =    ∫
                                  2   0      (   + 1)


        To  perform  this  integration,  need  to  express  it  as
        partial fractions,


                                 1                     
                                         =     +
                              (   + 1)               + 1


                              1 =   (   + 1) +     

        Or


                               1 =      +    +     

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