Page 88 - Bahan Ajar Matematika Dasar
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Contoh:
         77                        1.            = 6   + 12   + 5   + 2                              = ⋯ ?

                                                                                                3
                                                                         2
                                                          3
                                                                                                  3

                                   Penyelesaian:                                                  


                                                         
                                                                         2
                                                             = 18   + 24   + 5
                                                         

                                                             2
                                                               
                                                                    = 36   + 24
                                                                2

                                                                   3
                                                                     
                                                                          = 36
                                                                     3


                                       4
                                          
         2.    = sin 2  ,                   = ⋯ ?
                                          4

         Penyelesaian:


                                       
                                          = 2 cos 2  
                                       

                                   2  

                                         = −4 sin 2  
                                     2


                                   3  
                                         = −8 cos 2  
                                     3


                                    4  
                                          = 16 sin 2  
                                      4
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