Xem mẫu

  1. ! " #$ %" ! " # ! $ %& '( )* + ( , - + . * # * ' / 0 $ # / * # ' /1 & " % # / # ! + , # $ / # 2 3 & 4 $ " 56% - # 7* # # $ 6& 4 $ " %- # + / * # * # & 8 * $ * # / / 0 #&9 : +( + " 5 6% / * # " ≤ ≤ % ) " ; 5 6% # 0 # # / 0 / * # &< 0 #( 3 3 $ 3 3 + / . / + 8 * # + " 5 6% * # ≡ "* , % # / 0 # * # " ; 5 6% = ' # $ 3 3 + / . / > '/ * # ? * ' / / 0 # # ; " ?% @ " % ; + 7* # A 5 @ > > B> &&&&> >/ 0 * # & #/ / 0 ( + / * # * $ # 2 &9 / ≤ & C) $( ≤ > * * # * ' / / 0 #& 8 * # * # + " 5 6 A %> @ > > &&&> 5 6 @ > > &&&> & 9 : +(> * # # / / 0 # # + / * # 7 & & C $(> + ( , - + 0 )* - # @ & & ! " #$ %" + ( ≥ &8 D + ( , / 0 + + − = − >/ * $ & & − = ⇔ ≤ ≤ ∀ = " % E< 0 $ / C) ≤ ≤ ∀ = =∑ − + − = − + − + + − − = + + + − − + + + + − = = + + + + + − + + + + − = + − F G >, : +( ≤ + − ≤ − ∀ = − + − = + + + − = − − = E< 0 $ 0 =∑ − # + + − + − = − + = = F G > . , + D ( $ / + + . + , , = ∑δ δ ∈ − ∀ = =
  2. δ δ δ δ +δ + +δ = E H + , '( δ δ δ ! / + + #/ 0 # ' ( D + ) ' $ / , '( * # / +A # ! ' & 4 $ > > &&&> " > > &&&> % - 0 - > ! + $ D > - # + 2 " > 2 % D +(& # E / = ∑δ − ≤ ∑ − − ∑ − = ∑ − ∑ = = = = = = = #/ ( 3 δ @ * * # I #/ 0 # δ @A * * # ≤ "J% − = ≤ ! δ =− "# δ =− ∀ = $ % ≤ ≤ ∀ = & $3 K 0* + + ( / L 5 M& N - # $3 3 0* + $3 : K& C * : $3 38 $ > $ *"8% - # ) $ + + $ 8& < G = ∑ ' /( . - +( + $3 38 $ & '( D *& " ∈{ } ( =∑ ' / ( . - +( + $3 38 $ * # ' = & 8 + + ) $ $3 K& 9 : +( * G ) − $3 8 $ * # ' = &K ( = + + + ) − = ) −   − ∑ ' =∑ = ∑ =  ∑) = − )   = ∑ '  = = = − = =   "#   '( )* + + ( , * ' / ) = > - # + ( + ) N 3- #* $ ( + ) &N *- # +* ' 3 3 . ) & ' * $ ≤   N  = ! - > $ > $  *             =   −  +  −  + + −  −  −   $   $  $   $   $  $  C !∈ » L!M ; I ! ≥ L !M ⇒ + − + ≤ & 9 / > # "J% ( * ≤ * A & F . &K ( /O *& # + 2 # * / ) = ⇔ = ) = ⇔ =
  3. + ( , *> *P > P & ! + / * $ &< 0 +/ ' # ! " # 5 $% * : +/ / 0 # #* : / / 0 +& - # Q! + Q + + 7* / + * + 7* # $ #/ 0 # + + 7* # # &C * : / 0 + - # + Q! + Q + $ / & '( )* D + R ' # . 2 #> ( 3 # 2& 7 33 2 ( 3 3; 2> ' * ,≥ $− $−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− .− & V3 , + 2 # # # / ' , = − − 8 + ( I &H # * + * # + + * # ! >/ / 0 $ / / 0 # * ' EF : +/ * # > #* : * # / 0 / , # / . + +& E . +/ * $ # * # - # + # * # / . $ / 3 3 * # ( > + E @ R E @ BR E8 @ > ' F 7 - # # 3 #( - # Q Q $ $(> > - > . + + 7 * # ! >/ * : + / * # >* : * # / 0 / , # / . + +> # . +/ # B
  4. * # - # + # * # / &4 / >, + +/ * # ! # + +/ * # / ; 0 + * # / * # ! # + @ ; / * # / & ; 0 + I * # / * # / # + @ ; / * # ! & ; 0 + I * # / * # ! # + @ ; / * # / & ; 0 + I * # / * # / # + @ ; / * # ! & &&& ; 0 + I * # / * # ! # + @ ; / * # / & ; 0 + I * # / * # / # + @ ; / * # ! & *- > 0 + / * $ # + / * $ * ' / 0 # / 0 $ "% + / * # ! 5 # + / * # / " % − = − + = − * @ > > &&&> A #/ 0 $ "% ( + = + + + + / * # ! # + = + + + + / * # / & A #/ 0 $ " %, :, # ( @ &9 / # 3 / # * # >* . / 0 # $ / & #/ ( / 0 3 * & EC @ B> ! * # + + W * # ! # + +- * # / &9 : +( # * ' + ( 0 # & C $(> # 3 #(> - # # - # Q Q& C * : + ( I > $ - # + D + ( , / 0 >* #* : D / 0 + ≤ − ≤ = F= , −
  5. # "S% A "[% ( 3 3/ G O / ∈! + − ∈! − / ∈! + − ∈! − / ∈! + − − ∈! / ∈! + − ∈! − / ∈! + − − ∈! + 0 $ ! + ! ∪! − ∪! − ∪! − 1∉ ! + ⇔1= − − ∈! − ≠ ⇔1= − − − ∈! ∈! +{ − } − − − − , 0 , ! + ! ∪! − ∪! − ∪! − ! − − − "# , + = , +, − +, − +, − −, − ∀ > ! , + −, = , − +, − +, − −, − ∀ > , + −, + = , +, − +, − −, − ∀ > −2 − , + − , + =, − − , − ∀ > , − , − =, − − , − ∀ > − )3 , − >, − ∀ > "# , < , − ∀ > 4 , >, − +, − +, − ∀ > , ∀ > , >, − + , − + , − >, − + , − + , − = , − 7 / +* + 3> / @ 5 @ 5 @ 5 @ S& # / > , # "\% / @ Y5 @ B5 @ S # @ SX& + 2 #( +( I >ZX& # I >ZX& & ) +> , > ,− ∀ > " 0 , − . 3 " ) . 3 E X% )* + 2 $3 * $ - 3 > # +( EB + / / .* * ' / 0 # / / .* * C $ -(5 EB + / / .* * C $ -( ' / 0 # / / .* * C U 5 EB + / / .* * C U ' / 0 # / / .* * ]D 5 EB + / / .* * ]D ' / 0 # / / .* * 5 F= - 3 + * $ / / .* + * > C $ -(> C U > ]D & N > ]> C> K - # $3 3 / / .* * > ](> C U > K * = ∩ 2 2 = 2 ∩" " = " ∩ ! % > 2 > 2 " > " 5 % 5 ∩ 2 ∩" ∩ ! > X
  6. 4 * + . 2 > - # $3 0 3 0 + ∩2 = + 2 − ∪2 "# ∪2 ⊂ 2 ∪2 ≤ 2 ∩2 > + 2−2 = − 2 ≥ ≥ 2 −2 ∩ 2 ∩" = ∩2 + " − ∩ 2 ∪" − "# 2 ⊂ " ∩2 ⊂" 0 6 " ⊂" , ∩ 2 ∪" ⊂ " ∩ 2 ∪ " ≤ " "# ∩ 2 ∩" > + " − " = − " ≥ ≥" 4 7 ∩ 2 ∩" ∩ ! = ∩ 2 ∩" C) + # "S% /O *& F $ / D .* - * * + - $3 -D / 0 # U* Y ( 0 EK + #( / 0 U* 0 . + #( U* E4 #( / 0 # / * $ 0 - : E F= . - $3 / -D / 0 # * ' ( 0 > + 7 U* Y BYX #(5 E . - $3 / + -D / 0 # $(R < + #( U* Y > > &&&> BYX& 8 -D 0 0 # ' #( * * # ≡ & . + ' #( #( - # [B& + #( 2 . + #( U*> 3 0 / / 3 # ( 0 # & A4 $ / ={ ≤ ≡ } / = / = ≠ &H $( + #( 0 V 2 Z> + #( 0 V # - 2 Y> # . + #( 0 2 Y& Y; Z @ [B& C $( * : -D 0 * ' ( 0 / 0 # 3 [B #(& A ( # ! /D $3 3 [B #( * ' ( 0 / 0 #&K + #( V / ! /D , ( + " 1 0* #( , S ; %& C # * : ≠ > / Z Y #( V $ # 0 - +3 >/ G , '( " / D - # #( , S ; # D - # #( , S ; Z ; %& H $(> . - $3 / + Z -D 0 * ' ( 0 / 0 #& ! * # - # + ( - B # *! "* # # $% 3 3/ G # * : - 0 >/ G S # S "* : %* #S / # ) , / ( 7 ./ G # + * : / 0 7 ( > + Y
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{ }& 4 / > 1 ={ }- + − − + − # $3 0* !A 3 $3 K& 9 V - # $3 Q 1 Q /∩1 = ∅ ⇒ + + + − ≤ ⇒+≤ EN $3 3/ ' - # ! ={ }& N ^- # + +- ∏ &9 : = +( 0 + ( +3 , 3@B ; - # 3 B^ ; & K + ( +3 #( ( + # + + / ' & C * : + ∈! $− - #* $ D > >&&&>3A * ,3 0 $3 3V 0* ; + ( ! ∈{ $− }/ . !& * ,3 $ / ={ + + + }& C * : ! ∈{ $− }> $ K @ { ∈ ! + ∈ /} > + !$− = ∑ / = + ! +! + + &9 / 0 ! !+ ≥ > ∈! + - # $3 0* YY\ 3 !+ > / - #* $ $3 Q 1 Q K& $ $(> + 8∈1 " . 7 %> ) + + + 8∈ / & 4 .* +( + ++ ≠ + 8 "* , 3%> + ≠8 Z
  8. " " * $ / / 0 Z /1 & )* + ( , + * ' + * : /1 / - 0 S /1 # * $ - 0 * #B +S - #B / / ' & " % N /1 / / 0 / ' - # / / / & (- # " #S + /1 / % B - #B / # 1 S /1 / - # S /1 - +3 / & N V- # $3 /1 {/ / / / / / / } " / /1 V > @ >& & & > X #V % 4 $ / - # +3 $3 V& . /@ X X # V S /1 - +3 # & 9 : / +(> * $3 V / 0 S /1 - +3 / & C $( ≥ ' F* & X Y /1 #( ( / ) ' 0 S /1 - +3 / X Y /1 / & $ $(> - # * $ $3 0* X Y /1 #( ( / &^ $3 /1 / # $3 3 1 = {/ / / / } 1 = {/ / / / } 1 = {/ / / / } 1 = {/ / / } N S /1 - +3 / &] / * : @ &&&X > $3 $ > - #* : $3 / ' + * $ /1 $ &4 / ≤ = = 1 ⊂ #* : $3 " @ > &&&> X % / B3 0 $ / / / ∈ , /∉ ⇒/ / / ∈ ⇒/ ∉ ⇒/ / / ∈ ⇒/ / / ∈ * 9 0 $/ / / / ∈ 3 " = #$ % . T 7 ! ZA X Y@X / .* # - / # # +3 / / 0 / ' 2 X > #3 * $ > /1 - +3& ! + + + \* #* : + 0* + / [ ' + # / + ' + \R " % N 8- # $3 + + H / 0 / 0> 0 )* ' > $ / = ∈: . , /= ∈/ ≡ / = ∈/ , % , = 8 + ) + $ V5 * ' +& 9 + * ' + # ( + H - #* (/ . +/ 7 + * [A* ' + # ( + > * $ . , : >* # . , : / / [ ' +& . , : $( - # . , : "J%& < . $ . , : "J% 0* [ ' +> / $ - 0 - " # 2 3 % * [
  9. / = , , ∑ = ≡ = . +3 7 & ' '=/ / ∪/ #/ / ⊂/ / ∩/ =∅ ' = /− / + / $ ! / = * / V >, : +( ∈/ ⇔ ∈ ∀ = = − / - # + ( $ / L 5\M * # ≡∑ &K ( > / 7 + , '( Z = ' + . - $3 / # ' + > > > &&&> [& C) + / = / = * 9 : +(> +" , . , : "J% $ V ./ # $ $ - +3 J # > > &&&> [ - $3 , '( 0* Z ' + . ' + , '( + J C , '( - $3 / > ' +\ # ( ' +/ 0 G # ( ' + + # G # ' ' +- 0 , '(& ] $3 - $ 3 0 * H8 & & +( \ $ & #/ >, [ X $ [&\ 3 $ - +3 &F : 3 + $ V> 3 + & C) + / = − − + J # $ ! #, /= + ' = & ' '= ∪ / #/ / / ' =∑ / " % = = $ ! / = / = − ) ∀ = * . / = 8 ∈ 9 : +(> + " , "J%% $ V! ./ # $ $ - +3 J D , '( 0* [ D + 0 / 0 # * : D ' + \5 J C [A D + # - >/ 0 # * : D * $ ' + \ . ' +/ / 0 " #(% + 3 0 * : -+ -; F/ \ " "!" " $ & # / >, ) $ \ " "!" " & ) 3 $ - +3 &F : 3 + $ V! > 3 6 + & C) + / = − ) ∀ = # $ ! #" % /   ' = +∑ − = + ∑ − −∑ − −   =  ) ) ) = = − + = + − − − =
  10. #$ % 9 ( F H8 # > . F/ + 2 . 2 () - - - -0 - -, - - % - - ≤ ≤ - - -, - 5 - - - - -, - - - - - - - - - , - > $ , - # + 0 )* ( 0 / 0 #& 8 ! &< 0 # > - 0 - # ! + , > # 2 3 > + # / + & N # # # - # / G $& 4 / + ∈ % − ∈ # 1 7* + G / G $ C) +> , 7 + + " . + / 7 %* # * : 0 G / G $ / & C * : ∈» > $ ; - # + * # * : 0 / ; - # + * # / * : / G $ # 0 = −, * + 9 : +(> + * ' / 0 $ "J% 0* ; * # * : # $ $ / ; & * # * : / 0 $ $ / 5 / - # + * ' / 0 $ "J% # ( + / ! " ) % 9 / = − + − ] > + * ' / 0 $ "J% # ( + / ! 0* ; * # * : / , + Q!Q / ; * # * : / , + Q!Q / 0 / C) + = − + − #/ #" % ( = − + − + − = − + − ∀ ≥ 7 / +* + 3> @B # @ Z "B% $ ( 0 " % ^ / G ! A !A @ ! =) + +) − ∀ ≥ + − "B%> )* / ) = ) = + + + + − C $( =
  11. J 9 : +(> @ > @ @ # ≥S @ > / - # + * ' / 0 $ "J% # ( + 3 ! " &B% 9 @ >/ G @ & 7 / +* +3> @ S& 8 ≥B 9 : +(> + "J% # ( + 3 ! 0* ; " * # * : V # / 0 / ; & * # * : / V> / 5 ; " * # * : V # # / = − + − + − = − + − ∀ ≥ , − = − − − ∀ ≥ − = − ∀ ≥ + − − "# , = − = − ∀ ≥ − + − − " = = = − ∀ ≥ ) B×B # - #* $ + ( , & )* + * # * : * # &" * # - # + $ / # 3 32 (2 *% = % V PAI V > PAI > PAI , / 3 32 ( #( * $ 3 3 + ' # 1 G3 "V > V %> "V > V %> " > %> " > %/ # * # & ( # T / 0 ! !"& * # & + * # [ ! 2 > - #* B - &
  12. ] & N 0* * # V/ # * # # / # * # & * # / . V # * # / . &K ( - &C - #( ) 3 32 ( * + - / # 2 3 32 (- # & ] & N 0* * # G3 "V > V %> "V > V %> " > %> " > %/ # * # #( $ - &9 : +( _ $( " ./ + # 2 3 3 2 (%& C - #( ) 3 3 2 ( \ # Z ' * " '3 - − / % #( # &H $( + - / # 2 3 32 (& ] B& N 0* * # + S G3 / * # &9 : +( _ $(& ( >* : * $ ' * B / 2 3 32 ( − \ > [ # Z &H $( + - B / # 2 3 32 (- # &  − −  + + H $(> + 0 )* - # =   + + =  &   , - ./ & # #( # # ) ` ) & ( 3- 3 # )3 + -` * , * - #*& C # / ( ' $ , # , : / 3 +& C 0, # ) * $ + # " - - - - -"3E- % - # - - 5 %& C/F3G-;>>HD-4 - - % - # - -I-×-I- - - 6 - -
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