Page 128 - 九数(北师上)全册

! !

O$PQ ! ¦C×® )*+,$/.( !" !"(

% úüBû"úü-Æ/! Å8˜ !$
$
-"&/#
%
& ‡†8Ih"•±âë8ߏÁÂ=U% ®±âë^°¢Åp% ®" # + % ÃIJ^ ! ! #p
-"
$
# -"&/# #
$
$
%
%"!/ ! ®" $ + % ÃIP ! ! #p%"!/ ! ®±âë8ÁÂÃÉNp% ‹×†8ï‘
$" -" $"
C;<$
2345 ! qü¯:ÙÜrÀ% È|ÄãB% †% "žüq" )/% # Ä% Ê®%"! - ! †p% "Âqü8ÙÜ
ÝÀ8-BûIP$
3 !!!!!!!!!!!!!!!!!!!!!!
3
567 ! yðØ?ž;îïwñ 3
3
+ >, ¯;<ÃßI,+ì% ®|ìßI8U3 #$ "3ÜÝÀ8jÐ^ !++ †% €Ð !*. †qü% |žüq
3
Ð^!-+† 1 Âp% ßIØ°þÞ$$ ®|ì 3 !++3% ‹×úüMÒ% "3ÜÝÀ|õÐ!†% Ê|žÑü
3
ßI|Â8UÐ|Ð!+†p% šØÃ.ìß " A ! #
3 q-3% Íà|ÂãÔ8BûIP% Ê|3lõÐ !
IQ=% ‘¿ß<ÞßI% ;<lK|ì3 ?@*$(† A@.† >@!+† B@!$†
3
ßIq(+†84:ì4$ 3 $$ ¯¿õÈù":tÊÀ% ÖW^|°µ-+†% ×÷øS¶% O
3
" ! # ö;qi;<|Â8Bû 0 î# h|ì
"
3 |°µ.+†úü% "Ä»˜üq.++°µ$ úüÐ|Ð!†%
ßIÐÐ% " î# dì8†Õ̎$ 3
3 »úü뚑e!+°µ% çK¬:tÊÀ8úüÁÂ% úü
" $ # ¹¯Â8Bû^)+++†% )+++†·© 3
3 NÐU^ ! &+ ! †p% ãÔ8BûIÑ$
^iÂ8IPBû- ‘·% öû|]
3 %$ " †‡tˆ# ¯Üö6Ê8¯:ÊÀODëS^!+Ä>‡% !
h$ ‘{·% ö;qIPBû% n(q3
3 !>‡" ¦3´ï# 8ÊÀ"˜6Ê,.3% |3Bû(†% |
ßIUÐ^Ñe†$ 3
3 æA"Ä>‡% |3Bûï$†% u"ÂÊë‘e.3$
+ KL7M," ! # TQ$×®"T‚¯°$×
3
®#±¯²³$‚L$" $ # ›œ" ! # t$iL 3 " ! # È6Ê!% >‡8ÊÀ"Â8-Bû^ 0 †" st% !B
3 ÄL% ¥! 6 %6 !+ #% ;q 0 Õn% 8†Õ̎$
ÄÅÙ7¿¦C9Ó)+++ÏUe$ 3
3 " $ # È6Ê!% >‡8ÊÀ"Â8-Bû^!!$+†% ;iÊ
+ 3?* @, /!" ! # 3
0" " !-+1%/(+ #(
$
# % #. "/ % 1.+%1&$++ $" $ # 3 À8Dë>‡$
! $
,+/
0 3
!+
$
3 /!" ! # ;}!™‡H;ø&>¥<;,.Ô% öÔîï( % ö
! $ 3 šá&—™‡% öÔîïó}$ % ›&>;#89.Ô% <}
"/ % 1.+%1&$++$;"$+ % +6%6
$ 3
3 %™‡% šáH™‡-" %/! # ™% < 0" . (1$ " %/! #/. ,./.
# 3
!)+ % < p %"/ ".+ q% 7‰­¤0 " %/! #/% D 0 "/!+% 1!)+%1-++ " j]% -sƒŽ% k! 6
0
$
$" 3
3 $
0 :9T")-.+#)+++ % Ù q i ì 0 .+1 3 %6 !+ #$" $ # ;v‘lU/!+% 1!)+%1-++"!!$+ % ƒ:U
3 $
!-+"!,+ " # $ ! % /!)%1&$"+ % /U % !"( % % $"!$ " ’“#% <¾;øHœ#
3
3 ™‡0}(™$
111111111111111111111111111111111111111111112 2 3
3
#$ ~4×®"T$×®#H~4$L$
3
$$ $%Á[$uïiLÂß% ™Ò8Ù7¦9 3
3
Q% 2)ˆ@%"2 a=£>'$þ9Š
3
i`$ 3
3
2
2