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a1,}">)})]
/>?3@1,H""0"R</  &_2,&_<
/ . 2,"0</ =H
0123G' &_H""0"R</ . 2,
~1,}"}`>}
1,}"l`>
/>?3@
FF

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4' 2,
1R"</ "0. ></ 
2,
 1,}}`"}]}`>}]
/>?3@1,""0"</ . 2,$"2,

]&! >&_</ , 2,
0123G' &_""0"</  &_2,
1, >
/>?3@1,R"</ 2,]&! >%r%< =[J
]2,</ 
41,}}`" ,6]&! >
1,}" ,6]&J >
bc!9E5EU(AF!9%\!!9]&
*I  J+  J+ 
)Z&,XP
R
 `"0:P•]<,€€Q€€N[H4PQ`
.I#AF
E </ E'"0•4' A?3B
C>D?
 
FR

-<,‚Q‚N[H4"w4Q
YB

b0:K4' -<,‚Q‚N[H4"w4Q
+bc!9E5E3D!%R"bc!9%bc!9
)*I 
&! &! 
HJ </ ,.  </ I6t J+
</ ! [!</ 
)x# / &( ]. 
PUm
R

QP
R
URPmUm
R
P)m
R
QP
R
)RPmUm
R
PUmUE
R
QP
R
Um
R
UE
R
URPmURPEURmE
PUm
S
QP
S
USP
R
mUSPm
R
Um
S
P)m

S
QP
S
)SP
R
mUSPm
R
)m
S
I#AF
E H#  >
YB
m</  Nr&! &! "0</ ,
FS

""0hK,I"


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# %&! %$%o,3%J$:K
UGIH</ t "0QFQ
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Ui[</ t "0Q4}F4}
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UE </ t "0Q4UF
UG,Y</ t "0}F}
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I2;22JK2
.I#AF
E </ E'HJ H&( _% o,$
b0
>
i[
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Ub0QRt 
Fh

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-<,ƒQƒN[H4Q
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EJ •6>
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I#AFEJKK}` H# 
YB
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 F
 R
Fj
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5$Q5$
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I#AFEJ E H# 
YB

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Fe
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&_,K,H/ L t 
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U=HM,H4,Y

I#AFE H# 4' SKK]&! . |\S</ 



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Fd
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xaJ</ E')>
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/ H6

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I#AFb0•6>

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Fg
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I#AFE H# 
YB*+ q
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  ;
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EJ•
E H# 
+EJ• E H#  
2EJj• 

R`

EH
?EJ$•]&!   # FE H# 
KEJ E H# 
>EJ E H# 
=EJ•4' KE 
iEJ E 
JEJKK]3 $K%,"E H# 

WEJ " E 
EJ E 
+EJ•]&!  EH
2EJKK}`" EH
bM!9Aq!9B
  %&! %$%&! &! KtX4' ]. </ 
EJ">4' JK4' 
RF

+  %&! %$%&! &! &"2 $>%&! ,'
4' 
2E$&! •S

?„%]8 </ m,J%4
Km&! &! 3JR4' 
>m&! &!
m3JI,4' 
=„%]8 </ EJR%$NJ 
i5&! •d
Jz]8 </  \ g

EtX]8 4‡,Y$3 
%," 
RR

Wm
3$%]8 gNJ 
„%]8 </ JRLJS
+E "m*5"0S>m*5L Hn
„%]8 </ FFNJ ˆ
2m*5
$%]8 FFNJ ˆ
;,r!%:&"'$
L3.@5 $H=I,
 PQ
4 3 2
17 17 17 20x x x x− + − +
3NQFe
 mQ
5 4 3 2
15 16 29 13x x x x x− + − +
3NQFh
 EQ
14 13 12 11 2
10 10 10 10 10 10x x x x x x− + − + + − +
3NQk
] -Q
15 14 13 12 2
8 8 8 8 8 5x x x x x x− + − + − + −
3NQd
L3!@5 $H=I,

 xQ
1 1 1 650 4 4
2 . .3
315 651 105 651 315.651 105
− − +
 1Q
1 3 546 1 4
2 . .
547 211 547 211 547.211
− −
L3M@5 $H=I,
RS

 PQ
( ) ( )
3 2 2 2 3 3
x x y y x y− + −
"0NQR•
1y =

 x1"0
2x =
mH# xQ
2
2 3 5x x− + +
•1Q
2
3x x− +

L3N@5 $H=KNQUj


( ) ( )
2 2 2 65x x y y xy+ + − − +

( )
2
2 75x y y x+ − +
L3O@5 $H=

( ) ( )
2
1 1x y y xy x y+ − − −
NUQ)%KNQo
L3P@E / 

( ) ( ) ( ) ( ) ( ) ( )
2
x a x b x b x c x c x a ab bc ca x− − + − − + − − = + + −
•H# RNQU
U

( )
2 2 2
2 4bc b c a p p a+ + − = −
•H# UUQR%
L3Q@
 z MSFFK MSgFE H# TR
JS
 EJR•6"HJ  MjRFK MF`hFA|
JS4' yb>Jy

L3@EJUUQ`E H# xQ1Q"0

( ) ( )
M a a b a c= + +
•
( ) ( )
N b b c b a= + +
•
( ) ( )
P c c a c b= + +
L3R@EJI,xQ
( ) ( ) ( ) ( ) ( ) ( )
2
x a x b x b x c x c x a x− − + − − + − − +
5x
aJKKKH# 
1 1 1
2 2 2
x a b c= + +

L3.S@EJ$I,PQFjNTRS•mQRNUSE H# ,NK
$ ,6"PJFS>mJFS1 &_3,m
JFS>P^ JFS
L3 @EJ$I,PQjNUR•mQkNUd
 Ct :I,dPTRm
 E H# 1,$ ,6NK|\jNURJFd
>kNUd^ JFd
L3.!@E H# 
Rh



7 9 13
81 27 9− −
Jh`j

2 1 2
12 11
n n+ +
+
JFSS
L3.M@EJ]\FKSKeKF`KFjK{K
( )
1
2
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