Page 8 - Integration Problems
P. 8

Equate coefficients,

                                       1 =   


                                    0 =    +   


                                         = −1

                         1                           1        1
                                =     +           =     −
                     (   + 1)                + 1              + 1


                 1      /3                1        1       1
                   ∫                   = ∫ [ −                  ]     
                 2   0      (   + 1)      2   0            + 1




        Perform the integration,

                             1        1       1
                                ∫ [ −              ]     
                             2                + 1
                                 0

                            1                              /3
                         =     [ln(  ) − ln(   + 1)]
                            2                            0


                                 1                    /3
                              =     [ln (        )]
                                 2           + 1    0




                               2
                        2  
        Since    =    cos (  )
                                          4
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