Page 5 - (数学)高效训练
P. 5

!""        !  )*%&+,!-./0123/0


                          !"!""""""""""""""""       #$!""""""""""""""""      %&!""""""""""""""""



                !"#$                                         .  )! €i\UV(‚ƒW„(r !!!!! $ …†;rW„‚
                                                             .
            !! !"UV 2 * W+/(XYZ[\# # UV 3 * '/Z.W+#.              ƒ(‡ˆ% !
                                                             .
               %](XY[\# # % 3 . 2 ($ !! % !                  .    " ( './ 0 " / , # # %@+ , $ # % $./ 0 / # $ / , # # 2/ - ! % {t0
                                                             .      1A‰.Š@+) .uUV+
               (! ^UV               )! _UV
               !!!!!!!!!!!!!!!!!!
                                                             .
               *! ^_UV               +! _0                   .    # UV( '/$# # %/1$# ) (_UV.( '/ - # # %/1 - # )+
                                                             .    $ UV( '# # ) M.‹+# %#, ) f.‹+) (^UV,u
            "! ! pq)brs"#"#*+,-." &#"! #( #, # ) .( # $ #    .
                                                             .      UV+
               ,! % , # ) ($ !! % !                          .
                                                             .    % UV( '/"& # %1+& ) xUV( '1"& # %/+& )
               (! `:Zabcd           )! abZ`:cd
                                                             .      [Œ!
               *! `bcd               +! eZ`:fZabcd           .
                                                             .     def+
            #! ! "#"#*tu:;" ghijUV*                          .
                                                             .  !*! ! "#"#*0x}TW1" { 0 "$4 B#( "$ , $4, # ) .
                                                                                                        1
                                                                                                        2 2
                                                                                                   2 2
                                                                                                   1
                     "
                        "
               " ( '/ $ 1 # %/ $ 1 ) (_UV+                   .
                                                             .      ( 0 "$4 .lklm) ($ !! % !
               # ( D[klm(nop[) (^UV+                         .
                                                             .      (! `:Zabcd
                             "
               $ ( '/, ! # %/# %"/#,/,& , #(q#, ! ) (^_
                                                             .     )! abZ`:cd
                 UV+                                         .
                                                             .     *! `bcd
               % ( ' 槡 & # $ # - # % ,rs+# %#,Cs+) (^_UV!    .
                                                             .     +! eZ`:fZabcd
               tBuUV.$ !! % !                                .
                                                             .  !!! ! "#"#*~€TW1" !"[Ž+j! / 0 " (0-,
               (! $%!! )! "$        *! "#      +! #%
                                                             .                                    / 1,/ -,/ 4, # #
                                                             .                                  4              )
                                                                                                3
                                                         1
                                                     /
            $! ! "#"#*/0vw.L" !"/ # 1M.E+# %( " , " ) .      .     5 0 # % ( 5 0 ( S ‘ G . 5 - ). ( / 1,/ !#$ #
                                                                                                5
                    "
                 "
               ( / , 1 ) ($ !! % !                           .
                                                             .      ($ !! % !
               (! `:Zabcd           )! abZ`:cd               .
                                                             .      (! `:Zabcd
               *! `bcd !!            +! eZ`:fZabcd           .     )! abZ`:cd
                                                             .
            %! ! xy'z=)"#"#*+,I-K.L1[" & !"! # %( ! .              *! `bcd
                                                             .
               $%& ) .( vw" ! #, $ ! %! % ) $!xvw3#, $ !% ! % )$'  +! eZ`:fZabcd
                                                             .
               Xy) ($ !! % !                                 .                                           !
                                                             .  !"! ! <0'p)"#"#*+,I-K.L1["( $ /$
                                                                                                         &
               (! `:Zabcd           )! abZ`:cd               .
                                                             .                      $ "/%! % #,/ $ # $ ! %#
               *! `bcd               +! eZ`:fZabcd           .      ! ) .( @+ , $ # % $ !            {!’“”•
                                                             .      "               ./ 0 / # $ # * ! %
            &! ! "#"#*/N{|W1"( %$ # ) .( @+ , $ # % $%,./ 0 " # .
                                                             .      Š) ($ !! % !
               $ # * ! % z{|}) ($ !! % !
                                                             .      (! `:Zabcd          )! abZ`:cd
               (! `:Zabcd           )! abZ`:cd               .
                                                             .     *! `bcd              +! eZ`:fZabcd
               *! `bcd               +! eZ`:fZabcd           .
                                                             .     lmno
            '! 'UV( /# %"/#%& , #JKL#"!Z~) .uUV#            .                                 #%!
                       "
                                                                                                           "
                                                             .  !#! ! "#"#*‚ƒ„.L" !" 2 * !%         % " # 3 * # %"#
               %E+/(FGHI. !!!!!                                                                 &
                                                             .
                                                             .      ,!%% % # $ %, # %# 2 / 2 . / 3 (abZ`:cd# %
                                                                         "
            (! ! xy'<zkT"#"#*+,W1" !" 2 * # #%/ #$ & # 3 *
                                                             .
               $ "%# %$ #%& % , #! ' / 2 . / 3 (`:Zabcd# %/( .      E+% (FGHI. !!!!!
                                                             .
               FGHI, !!!!!                                   .
              " !!!!  !"#$% ! !""#$#
   1   2   3   4   5   6   7