Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu
!

# $%

&

'

(

*+, $*-.
4

6. 789: ;<=>;;
)' tập
E F+ và
%4R+2
D]+ cứu
" %'< L+2 2% >N


F*. G8H. 78I.8 GJK 9.$
•



8H. 78I.8 GJK 9.$
•

%P= c 06+2 d< 3_ +% >" "*+% 2 MN 3aA %4R+2 D]+ E# "@' 3 !6 . >+
"%6`+ ^? :%' "L %'#+ "%#+% ^6`+ EX+ "b" +2% >N

•

%P= 26=,+ e6 4+2 E# :): "%P= :L 8K -L+ "%M = .%'< L+2 2% >N
E# +% O: +2 S+2 "045+2 @ O: P+ %Q 3_ 3 !6 . >+ "%6`+ ^?
:%' "L %'#+ "%#+% ^6`+ EX+ "b" +2% >N

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu
•

%@: (d %) f6b:

•

%@: (d 26=,+ %g #'

V6

_ "`+ "*+% %4R+2 D]+A :%B D@= E# "06=!+ 3@" +%e+2 . +% +2% >- h6/ 8)' :%'
:%M+2 "L "0'+2 (6b" h6) "0*+% "%J: "`N E# %'#+ "%#+% ^6`+ EX+ "b" +2% >N +#=[
F*. GJK 9.$
): +%A %gA i- :L+2 "): "@ N%9+2 .j "%6`" :% :S: "%M = !+

TrungY[{tâm
HọcE!Liệu
ĐHE#Cần
Thơ
@+6L
Tài89liệu
học tập
Q ^4?:
3•: 3 o"*+% %*+%
:%X+
:;< %6=>+
%? và@'nghiên
"B+% !+ cứu
+% " F+ -+%uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu ‚
Y[€ >+% ^F D@+2 "01+2 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu W
Y[€[{ *+% %*+% +2% F+ :k6 "0'+2 +4R: uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu W
Y[€[Y *+% %*+% +2% F+ :k6 +2'# +4R:uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu W
Y[€[€ •: 3 o- ( +% %O: :;< -P- 8>+% uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu p
Y[€[U g:% "o uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu „
Y[€[n 0 >6 :%k+2 ^•- (#+2uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Z
Y[€[‚ >+% "m:% uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Z
Y[€[W %ƒ+ 3')+ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Z
Y[€[p

!6 "0guuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{{

Y[€[„ %9+2 8>+%uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{{
8 F+Liệu
"01+2 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Y
TrungY[U
tâm>+%
Học
ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu
Y[U[{ *+% %*+% +2% F+ :k6 "0'+2 +4R: uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Y
Y[U[Y *+% %*+% +2% F+ :k6 +2'# +4R:uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{Y
Y[U[€ •: 3 o- ( +% %O: :;< -P- 8>+% uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{€
Y[U[U g:% "o uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{€
Y[U[n 0 >6 :%k+2 ^•- (#+2uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu{U
- -]6 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuYp
€[n[‚ %4Q+2 N%)N vŒ ^/ (b ^ >6 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuYp
x[ • f}Ž

Ž G}~ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuY„

E


U[{ *+% %*+% +% ,- ./ ( +% "01+2 345+2 -)6 :;< %6=>+ %? @'uuuuuuuuuuuuuuuuuuY„
U[Y %#+% N%P+ ^'# ./ ( +% "01+2 -)6 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu€{
U[€ • ^> +% ,- ./ ( +% "01+2 345+2 -)6 "%…' ^k< "6l 89 uuuuuuuuuuuuuuuuuuuuuuuuuuuu€€
U[U • ^> +% ,- ./ ( +% "01+2 345+2 -)6 "%…' 2 b+2 89 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuu€‚
U[n *+% &+% ./ ( +% "01+2 345+2 -)6 uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu€„
x[ • G}~ xI z

• uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuU{

n[{ V" ^6`+ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuU{
n[Y ! +2%guuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuU{
I G }

Ž uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuUY
uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuUU

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu

E

+ %? @' "B+%
*+% Y x9+2 35

!+

+% ,- ./ ( +% "01+2 345+2 -)6 "%…' ^k< "6l :;< 89uuuuuuuuuuuuuuuuu€U
&+2 U[U • ^> +% ,- ^'# ./ ( +% "01+2 345+2 -)6 "%…' ^k< "6l :;< 89 uuuuuuuuuuu€n
&+2 U[n • ^> +% ,- ./ ( +% "01+2 345+2 -)6 "%…' 2 b+2 89 uuuuuuuuuuuuuuuuuuuuuuuu€‚
&+2 U[‚ • ^> +% ,- ^'# ./ ( +% "01+2 345+2 -)6 "%…' 2 b+2 89uuuuuuuuuuuuuuuuuuu€W

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu

v


2"

D

N

O

o6 3t U[{ • ^> +% ,- 2 e< :): v_ uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuY„
o6 3t U[Y %#+% N%P+ E# :45+2 3K +% ,- ./ ( +% "01+2 345+2 -)6 7 89 uuuuuuuu€Y
o6 3t U[€ • ^> +% ,- ./ ( +% "01+2 345+2 -)6 7 89 "%…' "6l uuuuuuuuuuuuuuuuuuuuu€U
+% ,- ./ ( +% "01+2 345+2 -)6 "%…' 2 b+2 89 uuuuuuuuuuuuuuuuuuuuu€W
o6 3t U[‚ • ^> +% ,- ^'# ./ ( +% "01+2 345+2 -)6 "%…' 2 b+2 89uuuuuuuuuuuuuuuu€p

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu

v


P
o 3)+% 2 ) "*+% %*+% +% ,- ./ ( +% "01+2 345+2 -)6
7 89 "@ %6=>+ %? @' "B+% !+ +% ,- :%6+2 :): ^'@ ./ ( +% "01+2 345+2 -)6 "X+2 DP+ "%…' 3K "6l ‘D4R
{ +X- "6l +% ,- YYAUn•A "T {u€ +X- "6l +% ,- Y‚AWY• E# "0F+ € +X- "6l ^#
UWAp€•[ r (J .%): 8 >" 0— 0>" 2 e< "• ^> +% ,- 7 3K "6l D4R { +X- E# "0F+ € +X"6l C 2 e< {u€ +X- "6l E# "0F+ € +X- "6l [

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu

+% :%4< 34?:
+245 D•+ +%`+ "%k: 0— E! "): %@ :;< +r 2•= 0< :%' 3#+ 89[ ): 8>+% +#= "%45+2 2•= 0< +%e+2 8 V+ 3l E! 8>+% ^/ ^#- :%' 2 < (M: 8g 2P=
=V6A 2 &- -@+% (k: (&+ v6ˆ" "%g"A (e< E# (k: .‹'[

>+% ./ ( +% "01+2 345+2 -)6 ^# -K" 8>+% 0ˆ" N%l 8 V+ "0F+ "0•6A 89A +2J<[ >+% 34?:
^•= ^: N%9+2 +2T< 8>+% +#= :r -K" / +2%d< 0ˆ" ^R+ "0'+2 E >: N%)" "0 o+ 3#+ 89 7 +4R: "< +r
:%6+2 E# t+2 8“+2 L+2 Œ6 G'+2 +r 0 F+2[

Trung tâmŠ6ˆ"
+% "0F+ 89[
€[ %&' ()" -k: 3K +% ,- 8 V+ 3K+2 "%…' 3K "6l A "%…' 2 b+2 89[

{


A

>

A

#

>TU 9 V/WG XY Z[G Z*\K XI 7].8 8].8 G8^. ._`* ab GcM 8_de. 8W
+ %? @' +“- E! N%m< 3L+2 "B+% !+ " 3K "%ˆN +%ˆ" "0'+2 +X-$ {„AU'
>TUT> [G Z*\K k*.8 7l mn 8o*
%? @' ^# { %6=>+ :r +26t+ +%•+ ^J: Dt D#' 3; :6+2 k+2 :%' "0t+2 "0O"A :%X+ +6L A (&+ v6ˆ" E# :%V 8 V+A [ [ [ "0'+2 %6=>+[
l+2 (b D•+ {p{€UY
TUTp ].8 8].8 G8^. ._`*
>+ +<= "*+% %*+% :%X+ +6L "0'+2 %6=>+ :r :% !6 %4R+2 "X+2 :

M, Lq.1 r

s

>T>TU ].8 8].8 .18*-. Gt_ 7L,.1 ./0G

%…' %@- j GX+2 ‘{„WU’ h6< . o- "0< WY„ "0•6 89 :;< E1+2 3t+2 :% F- *+% GS: ‘ #
: ^ˆ= -)6 . o- "0< nnW -]6 -)6 89 :;< € "B+% q: Gq:A %M F+A %)+% 9+A "): 2 & 2O ^#
+%
"T "%)+2
U 3V+ "%)+2
{Z ^# Thơ
+%e+2 "%)+2
+r+2Tài
ƒ- .% liệu
-# :L+ "01+2
T>Tz L*e_ G8t.1 VHK uI.1
%5 .œ +6+2 8>+% N%S "%6K: E#' N%4Q+2 "%k: ^•= 8>+%A 89 8g +% ,- D' E… 3b" "%* nu„ +2#=A " F- "06=!+ "%* €uU +2#=A +24+2
(b" Uu‚ +2#= ‘ %@- xX+ %6F E# %T>T{ e.8 7iG8
Š'T< 8|. Z,+.
. / ! 0 -1

2

3

&

4

o- Dg:% +2% F- +2•" .% v6ˆ" +%`N "0•6 89[

>Tp

e.8 - 2f.1 Lq.1 r
>TpTU ].8 8].8 .18*-. Gt_ 7L,.1 ./0G

%…' %@- j GX+2 ‘{„W{u{„WY’ :%' 8 V" 89 ^< ˜{ 2 e< 89 +DA '^("… + ˜0 ž E# 89
E#+2 +K :r "• ^> +% ,- ^F D@+2 "01+2 "%ˆN ‘nuW•’ E# "%45+2 7 "%o -_+ "m+%[

Trung tâm Học Liệu ĐH Cần Thơ @ Tài liệu học tập và nghiên cứu

4Q+2 L+2 %6`+ ‘{„W€’A 89 +K 7 +% !6 "B+% "T - !+ q:A - !+ 06+2 E# - !+ : " V+ %#+% ^ˆ= -)6 N%V" " F6 8&+ -)6 3#+ :;
8@:% %6=V" ^F+ "6=V+ +4R: 8O" :;< E…[ x… %M" -)6 89 8>+% (› "06=!+ -P- 8>+% ( +% ,- ^F D@+2 "01+2 "%ˆN ‘nuW•’[

_…* .8*„K ae.8w
>+% v&= 0< "0F+ 89 7 -O ^k< "6l A 2•= +•+2 +%ˆ" "0F+ 89 "047+2 "%#+% +%4+2 N%l 8 V+ 7 ^k< "6l "T n "%)+2 3V+ € +X- "6l [

qM €8+7 ae.8w

1< N%)" "0 o+ :;< E… &+% %47+2 3V+ -1< ^•= ^+% "%o :ˆN "m+% E# :%V" +% !6[ ): 3 !6 . >+
3r ^#$ +% >" 3K ^@+%A "%k: X+ "% V6 +%ˆ" ^# "%k: X+ vT>Tz L*e_ G8t.1 VHK uI.1
+% :%' :'+ E`" h6< € D@+2 "): 3K+2 (
%6b: ^F D@+2 "01+2 N%& D1+2 .V" %?N ER +%e+2 "%6b: :%e< :): "0 >6 :%k+2 E# "%6b: %c "0?A
"%6b: "0? " -A "%6b: "ƒ= +%¤A "%6b: 2 &- 3<6A "%6b: 2 & 3K: [ [ [ r 0ˆ" +% !6 ^'@ "%6b: D >" ^F D@+2 "01+2A +%e+2 "%6b: % >+ 3
E`" +6L [
u F- N%9+2$ +%e+2 +Q :r 89 "`N "06+2 +% !6A +%ˆ" ^# +%e+2 +Q v&= 0< 8>+% +#=A
%“+2 +X- +F+ " F- N%9+2 E#' "04R: -1< -4< E# :6b -1< -4Tx e.8 *-. Lq.1 r
>TxTU ].8 8].8 .18*-. Gt_ 7L,.1 ./0G

0'+2 3?" 3 !6 "0< E! :L+ "01+2 "%M = ‘{„‚‚u{„‚„’ 7 Yn 3 o- 3@ D >+ :%' +%e+2 E1+2
3g< ^/ "J +% F+ .%): +%: " V+ %#+% . o- "0< -)6 nnW 89 :;< € "B+% q: Gq:A %M F+A
%)+% 9
B %*+% :P6A %*+% "0k+2 :r 345+2 .m+% "T ZAnu{§-A ./ ( +% 7 0*< %'•: 7 2P+ 0*< %t+2

%…' i6ž…8= ‘{„pZ’A
:r %*+% D@+2 E# .m:% "%4R: "4Q+2 k+2 +%4
./ ( +% 7 "06+2 "•- E# 2P+ "06+2 "•- :;< %t+2 :P6[

+%4+2 "%45+2

X- {„„{A TxTx 2yG8 7\
+% 7 "%o :ˆN "m+% ER "• ^> :%V" :+ 7 Y "%o$

8\ G†€ 7i.8$ "%M (b" :+ .%)+2 "%o "0'+2 -)6 89[

V6 :r +2% +25 "%* ^ˆ= -)6 :;< 3K+2 E`" +2% +25 " F- "06=!+ :%' 3K+2 E`" "%m +2% >-[
>TxT} *Y_ 7Ly
r +% !6 %r< D4?: 3_ 34?: +2% F+ :k6 (Œ DS+2 "0'+2 3 !6 "0g 8>+% 8 F+ "01+2$ ‹-'(N'0 D +A 6^¥
1+2 %r< D4?: " F- N%9+2 +% ,- "04R: -1< ^•= ^<+ E# N%)" 8>+% :%' 3#+ 89 (e< "0'+2 :): E1+2 Dg:% ",[

l :%k: D >" E… 3g+% .œ 8“+2 :): %r< :%ˆ" 3•: % >6 "0F+ 3#+ 89A +2'# 8_ :%X+[
%X- (r: E# +6L D4a+2 89 "b"[

>Tz e.8 8- - Lq.1
>TzTU ].8 8].8 .18*-. Gt_ 7L,.1 ./0G
| x >" TzT> ].8 8].8 .18*-. Gt_ .1,I* ./0G
X- {„ZUA %… ^…0 :%' 8 V" :%B :r

^# D@+2 2•= 8>+% 34?: 8 V" "T ^•6 +%ˆ"[

X- {„Z‚A %… ^…0 :%' 8 V"
^# D@+2 .%L+2 2•= 8>+%[ r N%•+ 8 >" ER :):
+% ,- (q: :;< +r$ :%ˆ" +% ,- (q: +% !6 E# :r .% :r D@+2 -@+2 ^4R A "0) ^@ 8+ "0'+2 -)6 :;< "0•6A 89A "%…' N%4Q+2 "%k: -O: +%)+% 0t "):% 3L [

uG ! @
H 3
$ "%J: % >+ "0'+2 :Q "%o :): ^'# E… ./ :%; "06+2 2 +% ^# E…

+

+% %… ^…0 < 34?: "06=!+ :%' E`" :%; D' :): ^'# E… %O v'D D"A 3r+2 E< "09 E`" :%; "06+2 2 <+A "06=!+ -P- 8>+% :%' 89[
J "06=!+ -P- 8>+% +#= :r "m+% :%ˆ" D "06=!+ :%' "%V %> E… 35 (