Page 40 - Math SL HB Sem 1
P. 40

BNO\,IIAL THEOP€\4


            Example 3      Expand ( I  r -  2r:.1-" up to and includine  the rerm ri'irh x'










                                                                                                             i
                                                                                                             I





                                                                                                             I






           Exa.mple  4: The coeffrcient  of x5 in thc expansion  cf (1 f 5x)8 is eqrral to th€ coefflcient of
                          o                             ?
                        x  in the expansion of (a + 5x)  . Find a-



          I


















                                                                                                             I
   35   36   37   38   39   40   41   42   43   44   45