HBF7ML?@:BE*H}3I<CG367,36:BE!57,3143 d EGF4?@:?BfI2CG?2J@1K3LM7f4CG?@LE*H23D b :2:@A<561
O> 38\FK?@:251uSFK6H d H2?2?B1r5E*H23LM56EGFd ?@:BE367*E a H@58:<876? E? a 0@3C796=¢¡
H@CFK7E?@I<H23C 3\}£I<?@CE :@F @3C7*FDE{=t¡ 3\}£I<?@CE 3\}£7\¡8¤ bNa
d ?@:BE5F:~3)É5 d EG1=!EÊ}?\FKC1K75:<;EÊ}? J2?=@7 au H23:@A<L J23C?Bf/I<?@797*F4JB143;<314356EGFK?@:27
E*H@56E d 58:J<3Sfp?@CL38;!f4CG?@LËE*H23£L3LJ<36C7,HBFI ?BfmE*H23 d 1AmJF7
<Í
1 2
ÌÏ
2 3
Trang 27 2
ÌÏ
5 4
.
.
. . .
4 2
3)É5 d E36L 36:BEi;<3À;236AÉÀ<1D14367 3Ee;<3À;<3AÉË58Cd ?@:27 aÈØ 3 :<?@L J@CG3ÀI<?@797*F4JB143 ;<3
;31356EGFK?@:27$BA2F¢I<36AB @36:BE&%3\ECG3fp?@CGL'337( 5I258CÊEGFKCu;<367L 36L J@CG37;BA 1AmJM37E
Trang 3<Í √ 6
<Í
7 2
ÌÏ
5 4
.
.
. .
4 2
Trang 4.
. .
.
.
A B
P a
d
9 4
6
Ú
Ó FK:<;E*H2358CG365?BfE*H23CG3\F4?@:5J2? @3~E*H23
xÙ5WÉ8F75:<;J2361K?8}¾E*H23C5ImH ?Bf
(±1, 0)a H23S58CG365£?BfE*H23CG3$BA2FKCG3;SCG38\FK?@:SF7 d 143658C1=N5 $@A<5CEG3C?BfE*H23 d FKC d 1K3
- .
6
.
.
.
.
.
.
.
. . . . . . . .
.
3 x
x x
√ 3x 2
1 2
x + √ 2x 3
x +
√ 3x 2
Trang 55E*H@5EtFK7\¡
2007,?B1DA@EGF4?@:27U}HBFd H58CG3Im?@7*FDEGF @3SF:BE363C7 a
b $@A<58;2C5EGF d 3$@A<5EGF4?@:H@57CG3561<79?B1A@EGFK?@:27Ffm5:<;?@:@1=Ff<FDE7;@F7 d CFKLFK:25:BEUF7
:<?@:<):<356EGF @3 a H23;BFK7 d CGFLMF:258:BE?Bf<E*H23\F @3:3$BA<56EGFK?@:FK7
∆ = (4a) 2 − 4(4)(a + 6) = 16(a 2 − a − 6) = 16(a − 3)(a + 2)a
tJ<3NE*H23SEGFKL3:<383;<3;EG? d 5E d H!A<I aO H236:!}3H@5\ @3
d = vxt 5:<;517,?
Trang 62F7/EG5:<63:BEtE?£J2?E*H7)FK;<367U?Bf@58:£5:<\143 atbÈd FCd 143?Bf@C5;BFA<7
3 FK7NE58:<636:BE>EG?~E*H23M<C7*E d FC d 143M5:<;ÈJ<?E*H7*F4;237£?BfOE*H23M58:<\1K3 a!b E*HBFCG; d FKC d 1K3MF7EG5:<63:BEEG?ME*H23!7,3 d ?@:<; d FC d 143Q58:<;J2?E*H~7*F4;237N?BfE*H23!58:<\1K3 aÓ FK:<;E*H23!C58;@FDA<7S?Bf
E*H23SE*HBFKCG; d FKC d 1K3 a
. .
.
. . . . . . . . . . . .
.
.
.
Trang 7Ë
r56E*H236L5EGFd 51Or5\=<H236L¾J2385:FK: 587g6y! x#"$&%6y'Êx$ (%!)*+
k,.-#/#0@x@x8y1(%!)324%565$&7+/0&"1)%#7 a d ?@:BEGFK:@Am367¡}FE*H!E*H23£795L 336LI<H@587*FK7\¡
.
.
.
.
Trang 8x + {x} +
r {x}
x + [x] > 1¡}H23CG3
[x] 58:<;
{x} CG3I2CG3793:BENE*H23 F:BE363CSI<5CE5:<;E*H23 f4C5 d EGF4?@:2561I<5CE£?Bf
x¡CG37)Im3 d EGF @31= a
.
.
.
.
.
.
.
.
CG?BAB @3CA<:<3L'3E*H2?2;23!Im?BA<C d ?BA<Im36C#15!m\A<CG3;<?@:2:33M36: ECG?BF7NL?@C d 365AÉ
Trang 9x + {x} +
r {x}
.
.
.
.
Trang 10S¡m3\E
T ?@:BE1K5L %36L 35J@7 d F79793@¡<3\E79?@:BEI<5C143Sf45FEuL %3L3 d ?B1F:+356FKCG367 a
8?BFDE
r15J@7 d F79793Q;BAI<?BFK:BE
Ra 02A2F7 $BAm3
R 367*Eu143I<?BFK:BELMFD1FK36A~;<3£1K5 d ?@CG;23Ö{?BF4:25:BE
!#"$&%('()*',+.-/+10235467"$#84:9;<7#=#$:9>69#?A@B5CD+('E3E?#45F#$GH"$#I<
32$GJ"<7KD?55/L<L$<#MN$O$MN E"1"$N<P$$E$GA<K
Trang 11':+ F@>$4#"4D32$GJ"<" =%,')'(+ -/+102354&67"$#84E9>$! " =D3&6
F#%,',3&-6NK %1)$)435"5M#5%$"7$ F$'&4 ?:)*'&= '(+('N-2'DB:6 - %CP?>4AF,) -(*GJG L*4
2 :<?@LJ2CG367FK;<36:BEGF$BAm37 a 8?BA<7 d 3\EE3 d ?@:<;@FEGF4?@:t¡?@:Im3A@E!;36L ?@:BECG36C
$@A*5A d A<: d 5CC#3;<3
?@:?2JBEGFK3:BE
37:<?@L J@CG37 a
Trang 12F#$GH"$#I<4:32$GJ"<7KD?55E <7$A<5MO$G!$L/" "N<P$$/GA<K
H@CG33\A<:@¢6HEG3C7\¡ d 51D143; ) A2Fd <¡ Ó 57*E,¡\58:<;N614?8}¡\7*E58:<;N?@:<35Et35 d H @3CÊE3*É
?Bf/5: 3$BA2F156EG3C561mECGF58:<\1K3 a ) A2Fd QF7#f457*EG3C?@:ME*H23Q;@C5}&E*H@5: Ó 57*E,¡25:<; Ó 57*EuF7
f#EÊ}? d ?@L J@56E58:BE77*A<C{ @F @3E*H23mC7E!I<H@58793@¡E*H23,=f45 d 3365 d H?E*H236CFK:5
7,3 d ?@:<;MI<H@58793£5:<;E*H23Sf4587E367*E;@C5} }F:27 af/?@:@1=?@:<3 d ?@LJ25EG5:BE7*A<C{ @F @37E*H23
Q¡
F¡58:<;
¡fp?@C Ó 57*EF7
1 8
¡/5:<;fp?@C
614?8}&F7
1a
Trang 131##&!#8>"8$<<L P#")7 $&*< <
1 4
Ø 3£7936A21m:<?@LJ2CG3£:25EGA<CG361
x795EGFK7*f45F795:BEU13:<?@: d 3£37E
x = 3a'/7 <7$ $GA< '6 +(' '9 $'E3&0>'E- '9 4 )$" $5*4 F$'&4
Trang 14.
.
q q q q q q q q q q q q q
A B BN B C D E
Trang 15Z\[,]_^N`#W3Y ] |UXW Q ] |U
0.3a r5\=<J23£=@?BACG3L3LJ<36CE*H@5E
7
9 = 0.7 = 0.7777 a ?8}5J2?BA@E
Trang 16999n = 810(9D5)aOÒ 3 d 58:!7*FKLMI21DFfD=£E*HBFK7J=;@F @FK;@F:<SJ2?E*HQ7)FK;<367J=
27¡B\F BFK:<
37n = 30(9D5)a 6F: d
37 FK7N5!f45 d E?@C?BfE*H23!1K36fE#7)FK;<3B¡¢FELA<7*EJ<3!5!f45 d EG?@C?BfE*H23NCF46HEO7)FK;<3 a 6F: d
375:<;
30H@5 @3>:<? d ?@LML ?@:f45 d E?@C7\¡6E*H23:
37LMA<7EU;@F @FK;<33)É5 d EG1=F:BE?
5aO HBFK7}?BA21K;2:/EJ23SEG?2?MH@5CG; a
£36CG3F758:<?E*H236Cu58I2I<CG?@5 d aOÒ 3SmC7Eu:<?EG3SE*H@5E
37 × 20 = 740 < 9D5 < 1120 = 37 × 30a
£36: d 3B¡
9D5 = 37 × 25 J23 d 5A<793:<??E*H236C:@A<L J23C#FK: E*H23Im36CLFK7)7)FKJ@1K3C5:<63}H23:MLMA21EGFKI@1FK38;MJ=
b 7}FE*H£L5:=I<CG?2JB1436L7UF: @?B1 BFK:<#5NCG36Im3656EGF:<>;23 d FL561¡6E*H23N;23 d FL561263\EG7
d ?@: @36CEG38;E? 5Qf4C5 d EGF4?@: a 8?ME*H23Q58L?BA<:BE>?Bf:<?8}1K38;263?BfCG3I<35EGFK:<Q;<3 d FKLM517
1 5:<;
4aÍÕÒ H@5EQFK7!E*H23È5\ @3C5863È:@A<L J23C?Bf14? d 51#L5WÉ8FL5?Bf>5Im36CLA@EG5EGF4?@:?Bf
Trang 17:@A<L J23C7 d 58:Q\F @3>51K? d 561BLM5\ÉFKLA<LÀ5EI<?@7)FEGF4?@:
1FfE*H23,=5CG358CGC58:<63;S}FDE*HSE*H231K5CG63CU:@A<L J23COmC7E a
?@C3*É58LMI21K3@¡8E*H23SI25FC
35:<;
5\F @37u5S14? dIm?@7*FDEGFK?@:
aO
HBA<7¡E*H236CG3£58CG3
n 2
(n − 2)! = n!
(n − 3)! = 2n!
1
3 (n + 1)a
7Q561}£5\=27£:<35ESEG?È7,33 58:r?B14;EG3 d H@:@F$@Am3 d ?@L3 F:rH@58:<;8= aÈ H@5E 7I<5CE
?BfE*H23QCG357,?@:}H8=}3QI<C5 d EGFd 3!79?B1 BFK:<£I2CG?2J@1K3LM7E*H23QL ?@CG3}3QI2C5 d EGFd 3B¡<E*H23
Trang 185 79?B1A@EGFK?@:?@C>7)FEGA<56EGFK?@:~E?H@58I2Im36:t¡OJ@A@EN:<?EN3)É8I21DFd FEG1= a":f45 d E,¡3, @3:F: d 57,367
}H23CG3M5;BFKCG3 d E>56EE5 d !}?@C*87¡mE*H23793M561DEG3CG:256EGF @3L 3\E*H2?2;27S7,?@L3EGFL 367SI2CG? BF4;23
7)FLI@1436C,¡L ?@CG3M361K385:BE>7,?B1DA@EGF4?@:27 a :E*HBF7SF797*Am3}3Q}FD11O3*ÉI@14?@CG3M?@:<3?BfE*H2367,3
F4;2357#5:<;1K?2?256Eu5£:@A<LJ<36C?Bf¢I<CG?2JB1436L7FK:Q}HBFd HFE d 58:J23£58I2I21DF43; a
H237)FLI@14367*EU @36C7)FK?@:~?Bf¢E*HBF7#F4;235F7>36587=EG?3)É8I215F: a 6A<I<I<?@7,3S=@?BAH@5\ @3
10 J@51D1K7>5:<;
9 J<?\É8367¡m58:<;=@?BALMA<7E#I2A@E#51D1¢E*H23!J256117FK:BEG?ME*H23J2?\É837F:~7,?@L3L5:2:<3C
9 J<?\É8367 a£ 58:=@?BA79383£}H8= FE:<?8}ËLA<7*EJ<3E*H23 d 58793E*H@5E>?@:<3
Trang 19FK779?@L 3S7)AmJEG143\E=E*H@56ELM58367uE*H23S58I2I21DFd 56EGFK?@::<?E$BA2FDEG3SFKLML 3;@F56EG3 aØ 3E 71K?2?2
56Eu79?@L 3£3*É58LMI21K37 a
l#( @ys b EN5 d ?@:@fp36CG3: d 3ME*H23CG3 5CG3
100 Im3?@I21K3 I258CÊEGFd FI<5EGFK:< a 8H2?8}E*H@5EE*H23CG3#LMA<7EJ<3EÊ}??Bf8E*H23L }H2?£8:<?8}eE*H23#7)58L3#:@A<L J23C?Bf@?E*H23CI258CÊEGFd FI<5:BEG7 a
20a 8H2?8}iE*H@5EE*H236CG3>5CG3#fp?BA<C/:<?@:<936LIBE=£7*AmJ2793E7?Bf
S}FE*HNE*H23795L 37)A<L a
d ?@CG:<3Cu7 $@A<5CG3758CG351D1 d ?B1K?BA<CG38;QE*H23£7)58L3 a
Trang 20 ?8}¡6FK:Q?@CG;23Cfp?@C/5NCG3 d EG5:<\143E?£H@5 @3FEG7Ofp?BA<C d ?@CG:<3C7 d ?B1K?BA<CG38;SE*H23795L 3
d ?B1K?BA<C,¡/E*H23CG3 LA<7*EJ<3MEÊ}?È;@F/36CG3:BE d ?B1DA<L:27£F:}HBFd HÈ7 $@A<5CG37Q?BfUE*H23 795L 3
d ?B1K?BA<C58CG3QI215 d 38;FK:ME*H23!7)58L3£EÊ}?CG?8}£7 aÓ ?@C#3)É5LI@143B¡@}3QLMFK6HEH@5 @3!J@15 d
HBF714365;@7A<7EG? d ?@:27)FK;<36CuE*H23!I<?@797*F4JB143S}£5=@7N?BfI@1K5 d FK:<£I<56FKC7N?Bf7 $@A<5CG37
?Bf2E*H23N795L 3 d ?B14?BA<CF:!5 d ?B1DA<L:?Bf
37 $@A<5CG37 a H23CG3S5CG3
3
2 = 3}£5\=27UEG?QI@1K5 d5!I25FC#?Bf/J@15 d !7 $BA<58CG367¡<5:<;ME*H23Q7)58L3:@A<L J23C#?Bf¢}£5\=27EG?I@1K5 d 35QI<56FKC?Bf/CG3;
7 $BA<58CG367?BfE*H23795L 3 d ?B1K?BA<C/5CG3I215 d 38;F:E*H23#795L 3u}£5= a 3CG3}3#58CG35I<I@1=BFK:<
E*H23I2FK638?@:<H2?B1K3I2CGF: d FKI@143!}FE*H~E*H23 d ?B1DA<L:27587NE*H23I@F463?@:27£5:<;E*H23MIm?@7)7)FKJ@1K3
}£5=@7?Bf@I215 d F:<#5>I<56FKC?BfB1FK838 d ?B1K?BA<CG38;7 $BA<58CG367OFK:5 d ?B1DA<L:57E*H23>H2?B14367 a ?8}
E*H@56E 77)AmJEG143
A@EUFDEU1K358;27E?E*H23;<367)FCG38; d ?@: d 1A<7*F4?@: mE*H23£J2?@58CG;LA<7*E d ?@:BE5F:
5CG3 d EG5:<\143N}H2?@793Sfp?BA<C d ?@C:<36Cu7 $BA<58CG367#5CG3£I25F:BE3;Q}FDE*HE*H23£7)58L3 d ?B14?BA<C a
3#?@:NE*H231K?2?28?BA@Etfp?@CmE*H23±ÁI@F463?@:27#9=@?BA*CG3EC{=<
FK:<E?;@F7*ECF4JBA@E35:<;QE*H23ÁH2?B1K37 8FK:BEG?£}HBFd HE*H23,=58CG3£6?BF:< a;<36:BEGFfD=BFK:<>E*H2367,3
L5\= CG3$@A2FCG3!51FEEG143 d CG35EGF BFDE{=~?@:=@?BA<CI258CÊE a MU?2?2;M1A d Ó 3361¢f4CG383E? d ?@:BEG5 d
J<?@5CG; d 58:rJ<3~I25F:BE3;ÈFK:7)A d HÈ5M}£5=E*H@56ENE*H23CG3 F7:<?CG3 d EG5:<\143M}H2?@793
fp?BA<C d ?@C:<36Cu7 $@A<5CG37#H@5 @3SE*H23795L 3 d ?B14?BA<C
Trang 21
Ò 3¹J238\F: E*HBFK7À:@A<L J23C}FE*H E*H23¾I<CG?2JB1436L7Ë?Bf E*H23 1DFKLMI2F5;BF
EG561F58:<3;<3115r5E36L5EGFd a =ÈE*H@58:<87M6?ÈEG? H@CFK7E?@I<H23CL5611{¡ 58:258;@F58:
3658L Ø 365;23COE?QE*H23 FK: b E*H236:27¡!MOCG383 d 3Sfp?@C d ?B11K3 d EGF:<>E*H236Lfp?@Cu?BA<CA<793 a
Trang 22 3*ÉE!}3 \F @3E*H23 Ó FKC7E58:<;c83 d ?@:<;Â0B5Im36C7?BfNE*H23 83, @3:BEG3836:BE*H CFK79H
r56E*H236L5EGFd 51 1=@LI@FK58;\F @36:F:ir5\= a H@5:<7!556FK:EG? H@CGF7*EG?@ImH236C
L5611{¡ 58:258;@F58: 35L Ø 365;23CE?!E*H23 F: b E*H23:27\¡2fp?@C d ?B11K3 d EGF:<SE*H236LÕfp?@C
P QRS ;<36:<?E3E*H23S7 $@A<5CG3NF:27 d CF4J238;FK:E*H23N7,3 d E?@C
P FK7?@:E*H23C5;BFA<7
a = ba
Trang 24y 1
+ x
2 2
J@A@EU:<?EO5:3;<63>F: d ?@LL?@:£}FE*HE*H23SJ<33EG1K37uI2CG3, @FK?BA<7 d 311 a/ H23NCG367)A21EOF7UE*H@5E
7,?@L3 d 361D1K7£J23 d ?@L 3 36LIBE=5:<;FK:7,?@L3 d 3117SE*H236CG358CG3M:<?8} 7,3, @36C51J2383\EG14367 a
≤ f(a) + f(b)afp?@Cu5611
Trang 25ABC¡8CG3679I<3 d EGF @361= a/ 5FK:<#F:BE?£5 d*d ?BA<:BE/E*H@56EECGF58:<\1K37
OBC¡
OAC¡85:<;
OAB 5CG3£I2CG?8Ö{3 d EGFK?@:27?Bf
ABCF:MLMA@EGA<5611=?@CÊE*H2?26?@:251¢;@FCG3 d EGFK?@:27¡}3H@5\ @3
Trang 26a/ H23 d ?@LMI2A@EG3C7OFK:5 d ?@LI@A@E36C/1K58J£58CG3 d ?@:2:<3 d E3;QJ= d 5JB14367U587Ofp?B1D14?8}£7 @5 d
d ?@LMI2A@EG3C#FK7S;BFKCG3 d EG1= d ?@:2:<3 d E3; E?3*É5 d EG1=E*H@CG383M?E*H236C d ?@LI@A@E36C7 @F5 d 58J@1K37 a
J=M5 d 5JB143 a
Ø 3E
k J23QE*H23M7)L5611K37E:@A<LJ<36CN?Bf d ?@LI@A@E36C7SF:~E*H23!1K58J}H2?@7,3CG36L ?6 B51CG37*A21DE7OFK:14365 BFK:<Ö4A<7*EO?@:<3 d ?@LI@A@E36C/F:E*H23#1K58J?@C/5>I25FC?Bf d ?@LI@A@E36C7:<?E/5JB143
E?3)É d H@5:<63 ;@56E558:=L ?@CG3 aØ 3\E
d 56A<7,3
v H@57N;238CG33
3¡2E*H23CG3QLMA<7E#J<3Q5:3;<63F: d F4;23:BE}FDE*H
Trang 272¡58:<;
2a @5 d H7*A d HI<56FKC/?Bf23;<6367O7,36I<5C56EG37E*H23QC58I<H af¢E*H23CG35CG3EÊ}? d ?@LMIm?@:<36:BEG7
A 58:<;
B¡BE*H236:}3£L5\=M587)7)A<L3Q?@:<338;26356E
v d ?@:2:<3 d EG7NEG?
A¡¢}HBF1K3!E*H23 ?E*H236CEÊ}? d ?@:2:<3 d EE?
Ba 6FLMFD1K5CG1=t¡tE*H2338;2637!FK: d FK;<36:BE}FDE*H
w 5CG3È;BF BF4;238; ?@:<358:<;EÊ}? ai H23CG36L ?6 B51#?BfE*H23EÊ}?7)F:<\143\E?@:3;<6367;BFK7 d ?@:2:<3 d EG7uE*H23C5ImH a
ABFK7UE58:<636:BEOE?£E*H23 d FC d 143 Í 5:<;L383\EG7UE*H23N1DFK:<3
BC56EUI<?BFK:BE
B58:<;!5Im?BF:BE
.
.
.
.
A
D
M O
P
Q X
Trang 28Ò 3H@5\ @3
P Q = 2(s − b) sin B 2 = 2(s − b)
r (s − c)(s − a) ca
QR = 2(s − c) sin C 2 = 2(s − c)
r (s − a)(s − b) ab
RP = 2(s − a) sin A 2 = 2(s − a)
r (s − b)(s − c) bc
Ó F:251D1=¢¡}3MA<7,3E*H23}361D14):<?8}£:FK:<3$@A<561FE=
abc ≥ 8(s − a)(s − b)(s − c)¡}HBFd H!FK7#3$@A2F B51K3:BEUEG?BA21K3C :<3$BA<51DFDE{=t¡E??2JBE5F:
DJ<3NE*H23SLMFK;<*Im?BF:BE?Bf<E*H237,3
BCD FDfmE*H23 d 3:BECG367?BfmE*H23 d FKC d 1K375CG3£:<?E d ?B11DFK:<3658C a
Trang 29.
.
.
. . . . . . .
.
.
.
A B
Trang 30
.
. . .
.
.
.
.
.
.
.
.
. . . . . . . . .
.
.
A
P
Q R
S
Trang 33= C 2
58:<;
IA 2 = AI sin
B 2
58:<;
AA 2 = b sin
C 2
+ b sin 2
C 2
+ 2(b + c) sin 2
A 2
+ 2(c + a) sin 2
B 2
= (a + b)(1 − cos C) + (b + c)(1 − cos A) + (c + a)(1 cos B)
= 2(a + b + c) − (c cos B + b cos C)
+ (a cos C + c cos A) + (a cos B + b cos A)
Trang 34tE*HBA<7\¡
r E*H@5E#E*H23CG3M58CG3M3)É5 d EG1=
2 p−r F:BE363C7
k 7)A dE*H@56E
Trang 36j 6≡ i (mod k)7)A d HQE*H@5E
Trang 370@3EG3C HBA<L 36CcFK7&5: 5}£5CG;<}FK:2:@F:<I2CG?Bfp37)7,?@C ?BfrL5E*H23LM56EGFd 7&5E
F4;2;@1K38JBA<C{= ?B11K3863FK:¤U36CL?@:BE a/ HBF7J2?2?2£CG3W}?BA@EU?Bf<5N1K3 d EGA<CG3>7,36CGFK37u\F @3:
H@5877,?@L3E*HBF:<?Bf6 B51DAm3uE?S?/36C a H23#7*FÉ6E33: d H@5I@EG3C7 d ?6 @3Ct5J2CG?@58;7)Im3 d ECGA<L
:@A<L J23CE*H238?@C{=¢¡ d ?@LJ@F:256EG?@CGFd 7\¡t63?@L 3\EC{=t¡tC5ImHME*H238?@C{= 51D1/I2CG3793:BEG38;M}FE*H
5Q;236fEUEG?BA d HM5:<;M5 d 143658C5}£5CG3:<36797#?Bft5:3, @3C)I2CG3793:BEHBFK7E?@CFd 51 d ?@:BEG3)É6E a
b 11E*H23 d H@5I@EG3C7 d ?@: d 1DAm;<3}FE*H5>79361K3 d EGFK?@:?BfBFK:BEG3CG367*EGF:<#5:<; d H@51D1436:<\FK:<
I<CG?2JB1436L7 atb :£58I2Im36:<;@FÉNI2CG? BF4;237 d ?@LL3:BE7U5:<;£7,?B1DA@EGF4?@:27E?NE*H2367,3#I<CG?2JB1436L7 a
?@CA<:<;23CGC58;@A<5E3!CG37935C d H~I2CG?8Ö{3 d E7 aÓ F:251D1=¢¡m7*EGAm;23:BE7#}F7,HBF:<E? H2?@:<3E*H23FKC
I<CG?2JB1436L *7,?B1 @F:<S7,F1D1K7U}F1D1<<:<;MLMA d HMH23CG3SEG?M;2361DF46HEUE*H236L a