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Matematik Tambahan  Tingkatan 5  Bab 2 Pembezaan
              BAB


                   2             Pembezaan



                                 Differentiation






               PBD
               PBD    2.1  Had dan Hubungannya dengan Pembezaan                                                Buku Teks
               PBD
                             Limit and Its Relation to Differentiation                                         ms. 30 – 37
                   FOKUS TOPIK


                  dy
                1.   dx   disebut sebagai terbitan pertama y terhadap x.
                  dy                                                       Langkah-langkah         Pengenalan kepada
                  dx  is known as the first derivative of y with respect to x.  menentukan had     Pembezaan
                  dy                     df(x)                             Steps to determine      Introduction to
                2.    juga boleh ditulis sebagai    = f'(x) apabila y = f(x).
                  dx                     dx                         NOTA   limit            VIDEO  Differentiation
                  dy            df(x)
                  dx  can be written as   dx   = f'(x) when y = f(x).

                1.  Cari nilai had bagi fungsi yang berikut.   SP 2.1.1     TP1
                  Find the limit for each of the following functions.

                                                     (a)  had/lim  4 – x 3                       2h + x

                   had/lim  x  – 3x                         x → 0                    (b)  had/lim    3h
                            2
                                                                                            x → 0
                           x → 1                        = 4 – 0                            2h + 0
                                                                                         =
                                                        = 4


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                      2
                                                                                             3h
                   = –2                                                                    2
                                                                                         =
                                Tip Penting                                                3
                            Gunakan penggantian
                            secara langsung jika
                                 0        0
                            f(a) ≠   atau f(a) =  0
                                 0
                            Use direct substitution if
                                0      0
                            f(a) ≠   or f(a) =  0
                                0
                    (c)  had/lim   8 – x             (d)  had/lim    x + 7                       2x + 1
                                2
                           x → 2                            x → –1  x   – 5          (e)  had/lim   
                                                                 2

                                                                                                  x  + 1
                          2
                       = 8 – 2                             –1 + 7                            x → 4
                         
                       = 4                              =  (–1)  – 5                     =  2(4) + 1
                                                             2
                                                                                            4  + 1
                       = 2                                                                 
                                                        =  6                             =  8 + 1
                                                          –4                               2 + 1
                                                           3                               9
                                                        = –                              =
                                                           2                               3
                                                                                         = 3







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