Page 8 - 人教二数
P. 8

! ! !"#$
                                                                                                           !
                                                                                                           !
                                                                                                           !
                                                                                                           %
                                                                                                           !
                                 !!!        !%"#          !   *+-        !  .-/        !




                                                             " $. _(_"                      # /01$ #"!$"##( %
              ! !"#$                                         "
                                                             "
                                                             "
                                                             "
           !. *TU,F:;!V&                                     "
                                                             "
                                                             "
                                                             "
                                                             "                 ],N             ],N
                                                             "     pq
                                                             "
                                                             "              r !!! s         % !!! t
                                                             "
                                                             "                 ],N             ],N
                                                             "     (\
                                                             "
                                                             "              r !!! s         % !!! t
           ". 8 D O W X"! % & ' $ %& ( & '                   "
                                             #
                                                             "
                                                             "
              $ 1 %"                    # /01$ #"!$"##' % "
                                                             "       ! %&'(
                                                             "
              ! , " \]^%._`$ abc& N' de "                     &. `abcdef"                   # /01$ #"!$"##) %
                                                             "
                                                             "
                  f#                                !      " "
                                                     !!
                                                             "
                                                             "
              ! ! " Nghc& 0 ' ij$ kghc& /0 '                 "
                                                             "
                                                             "
                  ij#                               !      " "
                                                     !!
                                                             "
                                                             "    ! , " u D v !           "
                                                             "                      ! ! N w$           u D v
              ! ) " )"" MN %) N( !, N #' N $,&"
                                                             "         !     "
                                                                        !! Nw#
                                                             "
                  N#                                !      " "
                                                     !!
                                                                                         !! N#
                                                             "    ! ! " ]      Xuv!           "
                                                             "
              ! % " lm , N $,"" MN$ nh%Ke                    "
                                                                              !! NDyz$ x!
                                                             "    ! ) " x!         "                     !!    "
                                                             "
                  fMN!oN#                           !      " "        NDyz#
                                                     !!
                                                             "
                                                             "
           %. YZ[\+]^"                                       "
                                                             "
                                                             "   ! )*"+
                                                             "
                                                             "
                                                             " '. #/{|}%,&N$ ~)N/€$ 
                                                             "
                                                             "    XY‚%                     # /01$ #"!$"##* %
                                                             "
                                                             "
                                                             "
                                                             "
                                                             "
                                                             "
                                                             "



                          #$## ,""/0        $  ,0!!! ,"0        $  ,""/0!!! )&0        $  &)/0
                                   !
                                    %"/0   $  %0          -/0*)/0      $  ,0      %0#!0     $  ,""0
   3   4   5   6   7   8   9   10   11   12   13