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Ngày đăng: 18/10/2013, 03:11

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Bài mới  189'/ 2  (  !!    &     #%   )/E) + )6+;+! F +  7 -6 < !)) + ) * ;+?6;+) 7  +  * ;+ + 3 7  + / FE; 7 -6 < ! + 5+)G2;7-6 < ;+?;7) +   7  1 5/ (/) + ) +  7  7 25*) + )6;+! FH6 1  1 G,+) + (5* * - 1 (/ F5+)6;+  +  7  * ;+ 3 7 6;+ ) 7  + -6 < ;+  +  3 7 (= + / F>) + (,+67@I 7 6;+)A 5+ a c b d < 9) 7  c m d n < 3 7  a m b n < /IJKL 5,  F>) + )67( 7 9 + " * )-; < 6;+ 5+ 1 1 a c b d − < − 3 7  a c b d > F>) + )679 + " * )-; < 6;+! 5+ 1 1 a c b d − < − 3 7  a c b d < F5*6;+ ) 7 ; < ;+?); < ;+?; < ;+ ) 7  + 675 + 3 7  + / 7 2 + )6;+  + = <  +  / ,  #%&     Bài 1AEF<N<4MOB7"%? !    %       B 15 2<   13 26 'B 1663 1665   1665 166< B ,2< ,25   ,25 ,23 B ;, 5   ,6 4 *& "        $#         F   #  15 26  '   '   1  !       1   !  M%&        J) 7 %AEF4_<4MOB(  >&      )    (  1 2 , ; 3 5 < 4 6 U U U U U U U U  2 , ; 3 5 < 4 6 1H *&   # !' K= + 67( 7 9 + " * )-; < L>) <  O     1 2 , ; 3 5 < 4 6 U U U U U U U U  2 , ; 3 5 < 4 6 1H Bài 3AEF6N<6MOB(  >&      )     #  ?&  ')   61 11 ;, < U U U 46 4 ;1 ;   # !' $K= + 67 7 )9 + " * )-; < L>) <  O     < 11 ;, 61 U U U ; 4 ;1 46 Ba ̀ i 4AEF1HN<6MOB  %&  (!    ( !      B 2 3   , 3 'B 1663 166<   1663 1665 /IJKL 5;  *&   #    !??&  # !  + 6 < >) +  1 3 + 6+ * )6;+?5+) + =- +  +    &  # !& ?       ;M    $(    =(  #  1  #/ 0   &  12$1,$'$1;A1HHNMOB /IJKL 53 . ;+ EF12,12,G12,>1HH1  ,5, ,5, G ,5, >1HH1 I   12,12, 12, 1HH1 12, ,5, ,5, ,5, 1HH1 ,5, × = = × I    # !'$.     12,12, ,5, ,5, ' 16 651 6 651 6 65 1;6<1;6<1;6<  1414141414 4141414141 *& 16 65 =  >)  ?(  ?&

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