tiet 55 on tap tin 9

Tiết 55


I. LÝ THUYẾT


 !"#$%&'
# (" ) !"#$%*
 +%# ",) !"* 
 +%# ) !"#$%*
! %% ) !"#$%*


 -    .  /(  0 ) !"
1" 2(*&'
# (" ) !"1" 2(*
 +%# ) !"1" 2(* 
 3 ", ) !"1" 2(*
! %% ) !"1" 2(*


 4 5 6 7 8( /( 9( :.% #(2
 0;(2(.%'
# (" "<%<
 +%# +%(
 ("  " =%= "*
! 5! )"">

?@AB% CD(2EF(2G$ 0(
%E @H(2I

#J9(2K() !")%,K(>( # %(
)""*$K( CD(2HL
K(#(2 0J9(2K() !"
)%, K( >( # %( )""* $
K( CD(2HL
K(#(2 0J9(2K() !"
)%,K(>( # %()""*
!K(#(2 0J9(2K() !"
)%,K(>( # %()""*


 MI  # 2K  F  (2N( 2K(  (F 
!(2O(#(2 0.I
# 3P(9(
 Q/(9(RL 
 S#(
! T @H(2


U#%VL( W#(2 0'
K(#(2 0EX O(R2 YL:.
K(#(2 0 0L"%
-$:.%(Z%L$[ ($F:.%(\ 
X(#%VL
4$:.%(Z#"
K(EL(EZ(2
>R-R44R-R-RR41R4R-
A



]T7!G(2.(W(%%.(F #(2
 0/($:.%(ZC((.%#E$'
> >LL$
 >LL$%>
 >LL$%)"""!
1 >LL$%#) !"


^_ (B%.(W(%#(2 0
F  (#( (`R " 6 7 a# K(
(Y(2L@\(2((.%!@A '
>JF6b(
JFCL/(9(
8(F.(W(`c/
1`9EW# 

d(.%EZ(2%(2#E$'
> F  !(2 e#( K(2 (` O(  #(2
 0.f(2 (!B(2:P(9(
 _  c  EF(2 LX( W /(  WR `
( W#(2 0A E@HB%:. 7(g
  #%  %B( 9% (F  !(2 %(2
c(2 :P( 9( O( #(2  0 @\(2 a
(@%(2@\(2/(%B(9%:P(9(
1 )# c  %B( 9% (F  !(2 O( #(2
 0#cf(27h(i#R#%VL:.
2j Y 6 !` k#  0(2 : C (@ %(2
@\(2/(%B(9%:P(9(