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không đúngNbW<cN%4RF*#2@ 7 #*EC*#2< X ;B*A`C;d*-.E[0!*W3  #;e<f*#2;B2A4N.2$AN%ANg;H a C*;hN:  #_!*#2*[*1P<AQC*Fid*+ *+,*#2$%*#2 jH# &  8  9 =YCMC*+ ;b**#2$%M*# &  8 #,.kld#h<fC=YCMC ;C?1*4 ;B."%.2$A m MB%<=>;? không đúng@ 7 #2$%.2$A* BC.MA;Dn;D*,0*#2.";=Q*bC .2- & 0$ & 0o3AQC*F#-3  9;=Q*$>C2%# &  8 4N0*#2.E(R 1,#.E.)N%.EM* <cN>=>*  #<<$ & o ' $p02%R(CM+ 0*#2.";=Q* U A2*#2-3 N%4C1 &  9 # 8 N% & o ' ;d*D0*#2#P!c;D q #2;=Q*4RFOC=YCMC%,;? @ 7 .2$A2A."*#2#<<*  rC?# &  8 1*4   E2s_*C4W6# &  8 U&7$  → t t &#U7$ &  8 9 L,M**#2P<A;Y*F#]! u L$=QDE2B*5<f;B*1B;b*;=Q*mq#OC=YCMCE2$%6 7 &t0& !AN%=><v465 f?2   't0K  q 9 mV0K t Y;h6  '&&&&& NMTZYXCr SOHOHOHNaOHOHONaOHHCl  → → → → → → − ++  wN>$5$=Q$%6 7 #-3 8 x# ' &s   #-3 & x# ' &s   #-3 8 x# m &s  9 #-3 & x# m &s   kTT<<(*LN%<<(*# & -o ' 3 8 ;<=0=Ql,M;=Q*$%6 7 yF.H+,2%N%  yF.+,.H2%$c*RM2  yF.+,.H2%$c*N%o,;1.+,,<5A<<(*2%R,$ a * 9 yF.H+,2%$ a *R, z 20,;1.+,,<5A<<(*2%R,$c* & kTT<<,;<=N%<<#$ & 0=Ql,M;=Q*$%6 7 yF.+,.H2%$c*RM2  yF.+,.H2%N%  yF.+,.H2, X N, X 0,;1.+,,<5A<<(*2%R,$,2 9 yF.H+,2%N%0,;1.+,,<5A<<(*2%R,$c* 8 <<(**W,t0K2$N%<<(**W,t0&2$#$ & #h;B#.E.);C4W% %G$=Q.+,**f;=Q*$%,!,2@ 7 t08  &t0V  q0V 9 m0& ' =Q)2%<=>;? 2E4không đúng@ 7 S.) 8 l,# 8 ;1F *F#Z* BT2%;k,2%$c*v2  #-3 & #.E.)F *F#Z* BT2%$c*RM2,2%$c*v2  !2$=Q,N%<<(*L & # &  m G<<(** BT2%<,*,2,2% N% 9 !2$=Q<=,N%$ & N%<<#$ 8 G<<2%R,* B,2%N% K =Q%<=>;? ;=Q*2E4không đúng@ 7 !2TT<<$N%<<,I#-3 ' JF RF.+,2%$c*RM2,;1F . +,,  !2<<(*,R)N%<<L & # ' G<<* BT2%N%,2%<,*,2  !2<<.b2N%<<2;*#2,F 2% * BT2%<,*,2,2%N% 9 !2TT<<,N%<<#$ 8 F RF.+,2%N%,;1.+,,<5 V 1*M*C=Y#G1,^*,6  #U&$  → #$ & U &  & #$ & U&,  → #-3 & U&,$ 8 '#-3 & U & U& &   → '#-3 8  ' #-3 & U&$  → #$ & U& &  K #$ & U'$U &   → '#$ 8 U& &  ]C4W2^,)."*+,QC*F#-3$%6 7 0&  80K  80' 9 &0' m M*QC*F#<p %<=>;? ;b*1)$={)@ 7 #-3 8 xjH-3 & x-3 &  !AN%=><v465 f?2   #-3 8 x|-3 & x-3 &   #-3 8 xjH-3 & x-3 &  9 #-3 8 x7$-3 8 x|-3 &  q MBkhông đúng$%6 7 #A;D1,^*.`2Y|N%2AYjH0=#bN>=>*N%.E.) <*12%R)b4N  M*2*#2,N%;*#2,*1)ER 1,2A0;d*#2E#=e,R02 *#2-3(."%2*#2-3  # 8 *1)R 1,#F2AN%$%2DER,R 9 2#-3NT,*1)R 1,Nf,*1)." u L*'0'}QCyh2jH &  8 x# &  8 N%7$ &  8 M*<cN><<,;d*0<=o,C4W ;=Q**F#Z*1.$=QVrB."%%'0'yOC4WE2C4<ft0q 7$%C5~H.$=Q*+,# &  8 #}QCy$%-4*M*C4W;bR4 #,% %3 7 &t088~  VV0Vm~  Kt0Vm~ 9 8V0m~ &t B)**+,<<L & # &  m t0tKNT,;+C4WN><<*W,t0tV2$jHo ' #2E#=e & o ' $%6 7 tt2$  Kt2$  &tt2$ 9 &Kt2$ 216:;(%<=>;? không đúng@ 7 #$%.2$A* BCD**./'120E&'#45%  #$% !<*1*FGH$H*#6I7#J'< K '  0*1H$H*#1,#(  LM*N>.2$A1270#*1B,2,$!.O*M*H$H*#P*4*M*C?$>C'N%8< 9 #*M*QC*F0#*1ER 1,;STU>UV0#;1$%*M*2W*CSU&0U80UV 226<<(**W,t0K2$N%<<(**W,t0&2$#$ & #h;B#.E.);C4W% %G$=Q.+,**f;=Q*$%,!,2@ 7 t08  &t0V  q0V 9 m0& 236MBkhông đúng$%6 !AN%=><v465 f?2  7 #A;D1,^*.`2Y|N%2AYjH0=#bN>=>*N%.E.)<*12% R)b4N  M*2*#2,N%;*#2,*1)ER 1,2A0;d*#2E#=e,R02*#2-3( ."%2*#2-3  # 8 *1)R 1,#F2AN%$%2DER,R 9 2#-3NT,*1)R 1,Nf,*1)." 246L*'0'}QCyh2jH &  8 x# &  8 N%7$ &  8 M*<cN><<,;d*0<=o,C4W ;=Q**F#Z*1.$=QVrB."%%'0'yOC4WE2C4<ft0q7$ %C5~H.$=Q*+,# &  8 #}QCy$%-4*M*C4W;bR4 #,%%3 7 &t088~  8V0m~  Kt0Vm~ 9 VV0Vm~  256=Y#G1,^*%,;? không đúng@ 7&, 8 U&L•, &  8 UL &  8 U& &  ,- 8 3 & U, &  8 •, 8 U&, 8 &,$U& &   → đpcmn &,U & U$ &  9,Uo ' -<<3•, & o ' U  266];d*;B2%,;? không phải$%***M*.2$A.b2@ 7 oH$H*#$>C%*f*+, !"  FA2AB*+,;Y*F  o$>CH$H*# 9 oR1,*+,*M* !#QC*F  276 X ,,, X , X 08VE€Y a C&.2$, a .! X 2Y • &*.‚ X .! z ! z C,# z 27N, X =Y z *;=Y a * t0KV$‚ z .‚ z <#-;.*3,.2$, a ; z $, X 7 ,0L  0  L0 9 ƒ0,  286Y;E X ,6,•y•w•|••, , z **? z y0w0|0$? X $=Y a $, X  7 ,0, & o ' 0, &  8 0,$  , &  8 0,0, & o ' 0,$  ,0, &  8 0, & o ' 0,$ 9 , & o ' 0, &  8 0,$0, !AN%=><v465 f?2

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