!" !" #$%&''&'%% () *+ $*,)-. / %&001%1 23450%4 !"#$% &'()*+,- 6 67 7 6 67 7 + + = + + = ( ) ( ){ } 6 7 = ⋅ 6 67 7 6 7 7 6 + + = + = ( ) ( ) ( ){ } 6 7 = ⋅ 6 7 6 7 + = − + = ( ) ( ) ( ){ } 6 7 = − − ⋅ ! ! 6 7 6 7 6 6 7 7 7 + + + = + + + + = ( ) ( ) ( ) ( ){ } 6 7 = ± − − ⋅∓ " # 6 7 6 7 67 + = + + = ( ) ( ) ( ){ } $ $ 6 7 = ⋅ % & 6 6 7 7 6 67 7 + + = + + = ( ) ( ) ( ){ } 6 7 = ⋅ ' 6 7 67 6 7 6 7 + + = + + = ( ) ( ) ( ){ } 6 7 = ± ± ± ± ⋅ & 6 7 67 6 7 6 7 + + = + + = ( ) ( ) ( ){ } 6 7 = ± ± ± ± ⋅ ! $ 6 7 6 7 67 6 7 + + = + = ( ) ( ) ( ){ } 6 7 = ± ± ± ± ⋅ ' 6 7 6 7 6 7 6 7 + + + = + + + = ( ) 6 7 ± ± = ⋅ ! ' ! 6 7 6 7 6 7 67 + + = + + = ( ) & & 6 7 ± ± = − − ⋅ ! ! # ! ! $# 6 7 67 67 6 7 6 7 6 7 + + = + + = ( ) ( ) ( ){ } $$ & 6 7 = ± ± ⋅ 6 7 6 7 67 7 6 6 7 6 7 + + + = + + + = ( ) ( ){ } 6 7 = ⋅ " ! ! ! 7 6 6 7 6 7 6 7 6 7 6 7 + + = + + = ( ) ( ){ } 6 7 = ⋅ www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 2345084 $ 6 7 7 6 6 7 7 6 + = + = ( ) ( ) ( ){ } 6 7 = ⋅ ! ! 6 7 6 7 67 6 7 + = + + = ( ) ( ) ( ){ } # # 6 7 = ⋅ # 6 7 67 6 7 + + = + = ( ) ( ){ } 6 7 = ⋅ 6 7 67 6 7 + − = + + + = ( ) ( ){ } 6 7 = ⋅ " 6 7 67 6 7 − + − = + + = ( ) ( ){ } 6 7 = ± ± ⋅ % ! ! 6 7 6 7 6 7 − + − = + = + − − ( ) ( ) ( ){ } 6 7 = ⋅ 6 7 67 67 6 7 + + + = + = ( ) ( ){ } 6 7 = ⋅ .'()*+,- 6 6 7 7 7 6 − = − = ( ) ( ) $$ && ± ⋅ ∓ ! ! 6 67 7 7 67 6 − = + − = + ( ) ( ) 6 7 + − = − − − ⋅ 67 6 7 67 7 6 + = + + = + ( ) ( ) ( ) ( ( 6 7 = − − − − ⋅ ! ! ! ! ! ! 6 7 7 6 7 6 6 7 − + = + − + = + ( ) ( ) ( ) ( ) ( ){ } 6 7 = ⋅ " 6 7 7 6 + = + = ( ) ( ) ( 6 7 − ± − ± = ⋅ % 6 7 6 7 6 7 + = + = ( ) ( ) ( ){ } ( 6 7 = ± ± ± ⋅∓ ! ! & ! ! & 6 7 6 7 7 6 7 6 7 6 6 7 − + = − − + = − ( ) ( ) ( ){ } $$ 6 7 = ⋅ ! ! ! ! ! ! 6 7 6 7 7 6 7 6 6 7 6 7 + + − = + + + − = + ( ) ( ) ( ){ } $$ 6 7 = ± ± ⋅ ' $ # ' $ # 6 7 67 6 7 6 76 7 + − − = + − − = ( ) ( ) ' ' $$ # # 6 7 = ⋅ www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 2345054 6 7 7 6 + − = + − = ( ) ( ) ( ){ } $$ ( )6 7 = & & 6 7 7 6 + + − = + + − = ( ) ( ) ## )6 7 = & & 6 7 6 7 + + − = − + + = ( ) ( ) )6 7 = 6 6 7 7 7 6 + + = + + + = + ( ) ( ) )6 7 = " 6 7 7 6 + + − = + + − = ( ) ( ) ( ' ' 6 7 = ⋅ % 6 7 7 6 6 6 7 7 + + + = + + + = ( ) 6 7 − − = ⋅ ! ! ! ! 6 6 7 6 7 7 7 6 7 6 − − = − − − = − ( ) ( ) ( ){ } $$ 6 7 = ⋅ ! ! ! ! 6 7 67 6 6 7 67 7 + − = − + + = ( ) 6 7 − − = ⋅ # ! # ! 6 7 6 7 6 7 + = − − + = − + ( ) ( ) )6 7 = ± ± # 6 6 7 6 7 6 7 7 6 6 7 6 7 6 7 7 + + + + + + + + + = + + + − + + + + − = ( ) ( ) )6 7 = 6 7 6 7 7 6 − = + + = + ( ) ( ) )6 7 = + + " 6 6 7 7 6 7 + = + − = + ( ) ( ) 6 7 = − ⋅ % $ 7 6 6 7 6 7 6 7 + = + + = + ( ) ( ) ( ){ } #6 7 = ⋅ 6 6 7 6 67 7 6 7 7 67 + − + − − = + + − + − − = − ( ) ( ) )6 7 = − www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 2345004 /'0#123 4 -, !"$5##6,,7# !"'0#1 # 6 67 6 67 7 − = − − = ( ) ( ) ( ){ } 6 7 = − − ⋅ ' 6 67 7 6 67 7 + + = + + = ( ) & # & & & 6 7 = ± ⋅ ∓ 6 67 7 6 67 7 − + = − + − = ( ) ( ){ } 6 7 = ± ± ⋅ ' $ 6 67 7 6 67 7 − + = − + = ( ) ( ) ( 6 7 = ± ± ± ± ⋅ " & 6 67 7 6 67 7 + + = + + = ( ) ( ) 6 7 = ± ± ± ⋅ ∓ % ' # 6 67 7 6 67 7 − + = − + = ( ) ( ) $ 6 7 = ± ± ± ⋅ ' $ # $ $ 6 7 6 7 6 7 6 7 − + − = + + − = ( ) ( ) ( ){ } $$ ( 6 7 = − ⋅ # ' 6 67 7 6 67 7 + − = − − = ( ) ( ) ( ){ } ( 6 7 = − − ⋅ ! 6 6 7 7 7 6 67 7 6 7 − − + = + − = − ( ) ( ) ( ) & $$ 6 7 = ± ⋅ $ # $ 6 7 6 7 6 7 6 7 − − + − = + + − + = ( ) ( ) ( ){ } ( 6 7 = − ⋅ & 6 67 7 6 6 7 − + = − + = ( ) & ' ± − ⋅ ∓ & $ 67 6 7 6 7 7 = + + = − ( ) ( ) 6 7 = − − ⋅ ! 6 7 6 6 6 6 7 + + = − = ( ) ( ) ( ) ( ){ } $$ 6 7 = ⋅ ! ! ! 6 7 7 6 6 6 6 7 6 + + + = − + + + = ( ) ( ) 6 7 = − − − ⋅ " ' 6 6 7 6 7 6 6 67 6 + + = + + = + ( ) & 6 7 = − ⋅ % ! 6 7 7 6 6 − + = + − + = − ( ) 6 7 = − ⋅ www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 2345094 6 7 6 67 6 6 7 7 − = − − = − ( ) ( ) 6 7 = − ⋅ 6 7 67 6 7 6 7 + − = + = + ( ) ( ) ( ) ( ) $ $ 6 7 = ⋅ ' 6 7 6 7 6 67 7 − = + − + = − ( ) ( ) ( ){ } 6 7 = − − ⋅ 6 7 6 7 67 7 + = + + = ( ) ( 6 7 = ⋅ " # 6 6 7 7 6 7 − = + − = ( ) ± − ⋅ % ! 6 7 7 6 7 6 + = + + = + ( ) ( ) ( ) ( ){ } $ 6 7 = ± − − ⋅ ' ! ! 6 7 6 7 67 6 67 7 − = − + − + = ( ){ }! 6 7 = ± ± ⋅ ! ! 6 7 6 7 7 7 6 + + = + = ( ) ( ) ( ){ } ( 6 7 = − ⋅ ! ! 6 7 6 7 6 7 67 7 + = + − − = ( ) ( ){ } 6 7 = ± ± ⋅ 4'89: !"2; ?4 @2A !"#B+- & CDE 3#>F>G92 69 *#$5#6'6& !"2; <# & 6 67 7 6 67 7 6 7 + + = − − = − + HIJ.K&LM ( ) ( ) ( ) ( ){ } 6 7 = ± ± − − ⋅ $ $ 67 6 6 6 7 6 7 67 7 + − = − + + − − = HNJ.K&.M ( ) ( ) ( 6 7 − ± = ± ⋅ ! $ ! ! 6 7 67 7 6 7 67 6 7 6 7 − + − + = + + = + HOJ.K&&M ( ) ( ) ( 6 7 = ± ± ± ± ⋅ $ & $ 7 67 6 6 67 7 6 7 + − = − − + + + = ( ) ( ) & & ( − − ± ⋅ − − ∓ " 6 67 7 6 7 6 7 6 7 + − = − − + + + = ( ) ( ) ( 6 7 = − − ⋅ % ' 6 6 67 7 6 7 67 7 + − = − − + = ( ) ' ( ( − ± − − ⋅ 6 6 7 67 7 6 7 6 67 6 + − = − − − + = ( ) ( ) & ( $ & 6 7 ± = − ± ⋅ # $ # $ 6 67 67 7 6 6 7 − − + = + − + = ( ) ' ' ( 6 7 ± ± = ⋅ www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 234504 ' 6 6 6 7 67 7 67 6 6 7 − + + = + − − + = ( ) ( ) ( ) ( ' ( ( − − − ⋅ 67 6 7 6 7 6 7 7 6 6 7 + + = − − − = − HNJ.KKPM ( ) ( ){ } 6 7 = ⋅ & & # 7 67 7 6 6 7 6 6 − + = − + + + − − = + { }! ! (! 6 7 = − ⋅ 6 7 6 7 6 7 6 7 + + − = + − + = ( ) ( ) $ )6 7 = $ 6 7 67 6 7 − − = − − − = *+ ( ) ( )( ) $)6 7 6 7⇔ + − = " ' $ 6 6 7 67 7 6 7 6 7 − + − = − + + = ( ) ( ) ( ){ } ( # # 6 7 = − − ⋅ % 6 7 6 7 7 6 6 7 6 7 + = − − + − = + − ( ) ( ) # ( ' 6 7 = − ⋅ ! 7 7 6 7 6 7 + − − = − − + − = ( ) ( ) )6 7 = ! ! 7 7 6 7 6 7 7 7 6 7 + + + = + + − = − ( ) ( ) & ( 6 7 = ⋅ ! ! 6 7 7 6 7 7 6 7 + = − + − = − + ( ) ( ) )6 7 = − , 6 7 6 7 67 6 7 7 6 + = + − − + − = − ( ) ( ) )6 7 = ± ± - ! ! 6 7 7 7 7 6 7 6 6 7 + − − = + + − = + *+ ( ) ( ) )6 7 6⇔ + − = . 67 6 7 6 7 6 7 6 7 + + = + + = − ( ) ( ) ( ){ } $ ( )6 7 = − / $ 6 6 7 6 7 67 7 6 7 6 7 − − + + − = − + + = ( ) ( ) # ( # 6 7 = − − ⋅ ! ! ! # 6 7 6 67 7 6 7 6 7 6 − + + + = + + + + − = + ( ) ( ) ( ){ } $ ( 6 7 = − − ⋅ 0 ( ) 6 7 6 7 6 7 67 + = + = − ( ) ( ) # # ( 6 7 + − = ⋅ $ ! $! 7 67 7 6 6 7 7 7 − + − − = − = + − + ( ) ( ) )6 7 = www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 234504 1 ! ! ! ! 6 7 6 7 7 6 7 7 6 6 − + + = + + + = + ! ! )6 7 = . QR@'6& !"2; <#=( ! ! 6 6 7 7 7 7 6 + + + + = − + = + ( ) ( ) $$ 6 7 = − ⋅ 7 6 7 6 6 6 7 6 6 − + + + = + + = + ( ) ( ) # )6 7 = $ 6 7 6 7 7 6 6 7 67 6 7 + − − + − = − − + − + − = ( ) ( ) )6 7 = & ! & 6 7 7 6 6 6 7 6 7 6 + + = + + + + + + + + − − = + ( ) 6 7 ± − ± = ⋅ " ! ! 6 7 6 7 6 7 6 7 6 7 + + + = + + + + + − = ( ) 6 7 = − ⋅ % ! $ 6 6 7 6 7 7 6 7 7 + + + = + + + − + = ( ) ( ) )6 7 = ! 6 7 6 7 6 7 6 7 7 6 7 6 7 7 6 + + − + = + + − + − = − − ( ) ( ) )6 7 = − − ! ! ! ! 67 6 7 67 6 7 7 6 7 67 6 6 − − − + = + + + + − = ( ) ( ) )6 7 = ! $ 6 6 7 7 6 6 7 7 7 + + − − + = + − + − + = HOJ.K&/M ( ) ( ) ( ){ } $ )6 7 = , ! ! 7 6 7 6 6 7 7 7 6 7 6 7 6 7 − − + = + − − − + + = − − − − H&LM ( ) ( ) 6 7 + − = ⋅ - ! ! & 7 6 7 6 7 6 7 7 6 7 6 6 7 − + + + = + + − − − + = − − ( ) ( ) )6 7 = . ! ! 6 7 6 7 7 6 7 7 6 7 6 7 + + − + + + = + − − = − − ( ) 6 7 = ⋅ / ! ! ! ! $ 6 7 6 7 67 7 6 6 7 7 7 + − − + = + − + − + = ( ) ( ) 6 7 = ⋅ ! '! ! ! ! 6 6 6 7 67 7 6 7 6 6 + − − + = + + = + ( ) ( ) )6 7 = www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 2345014 0 ! & & 6 6 7 6 7 7 7 6 7 6 6 7 67 6 + + + = − − + + − = − + ( ) ( ) )6 7 = 6 7 6 67 7 6 7 67 6 7 6 7 6 7 + + − + = + + + + − = − + ( ) ( ) )6 7 = 1 ! ! ! 6 7 7 7 6 6 6 7 6 6 6 7 6 6 7 + + + + − + + = + + − + = + + + ( ) ( ) & # # 6 7 = − − − − ⋅ ! ! 6 7 6 6 7 6 6 7 6 7 6 7 6 6 7 − − + = − + − − + + + + = − + + ( ) ( ) $ )6 7 = 6 7 6 7 + = + + + = ( ) ( ) )6 7 = ! 7 6 6 7 6 7 6 7 6 − − = − + − − = ( ) 6 7 = ⋅ ! 7 6 6 7 67 6 67 6 6 6 6 7 7 6 7 + + + = + + − + − + − + − + − ( ) ( ) )6 7 = # # ! ! 6 7 6 67 7 6 7 67 7 6 6 7 7 6 + + − + = + + + + + + + = + + ( ) ( ){ } )6 7 = ! 6 6 7 7 6 7 6 7 67 − + = − − + − + = ( ) ( ) )6 7 = " & & $ 7 7 7 6 6 6 7 6 7 6 + − + + = + + + − − + + = ( ) ( ) & 6 7 = − − − ⋅ % ! ! ! ! & 6 7 6 7 67 6 7 7 6 7 6 7 + + − − − + + = − + + − − + = ( ) ( ) )6 7 = ! ! 6 7 6 7 6 6 7 6 − + + = − + + = − + − ( ) ( ) $ 6 7 = − ⋅ ' $ # 6 7 67 6 7 6 6 7 7 7 + + − + − = + + + = − + − ( ) ( ) )6 7 = ! ! ! 6 7 6 7 6 7 6 7 6 7 6 7 6 7 + − + = + + − − + = + + + − ( ) 6 7 = ⋅ , !# ' 6 7 7 6 7 6 6 6 6 6 = + + − − − + + + − + = ( ) ( ) )6 7 = www.VNMATH.com !" !" #$%&''&'%% () *+ $*,)-. / %&001%1 23450'4 / 62; <#=(DS62,3#: & ! 6 7 6 6 7 6 + = + − = − + ( ) 6 7 = ⋅ $ # $ 6 7 6 7 6 7 6 7 − − + − = + + − + = ( ) ( ) ( ){ } 6 7 = − ⋅ ! # 67 6 7 6 7 6 7 − = + + − − = ( ) ( ){ } 6 7 = − ± − ⋅∓ $ $ 6 67 6 7 6 67 7 6 + + + = + + + = ( ) ( ) $$ − − − ± ⋅ ∓ ' 6 7 6 7 6 7 − = + = − ( ) ( ) ( ){ }
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