de kiem tra tuan

    ! " #$% &  '()%*+,-./0 12   3. 456578 9: 65;< 3:= '65;< '(>?6@//A,>-:/0 a) ?2B+* #CD>E>E7 F3'>G:HI 0?2B+*/A #C >E9 FJ'9G:H>  0?2B+*/A #+K JELJE>7 F>'>:GIH: 04--M-N<;< MOP5QRSO/;T 9 1(%  SO/;T P5 7 F9 2 '> 2 G: 2 H>J 2 '(   + 3.J> :I '(J12 '*%65;< '655;<+ 65 '(.4 UJ>.S-M UV<4.S a. WVPX #MY,-./0 b. WVPX #S4MY,-:/0         WV>L>EJZ ,[0 /T :-./6\%S ]  > N  " #$% &   ^: 'WV,>/0 .E>E9Z9:Z EJ_>ZI_.E9Z '>12-/ ` 2  +a /A,/0 N   bDV  >.J  4565 :.Z::L. 3Z3:L 65 V I: '; U=. PX- U> PX-4 UV<aPXS473  a. WVaPXS;Y,/0 b. WVPX #4Y,>/0 c. WVaPX #S;-4Y,/0            c?& $Ud/c  4e4fGFgchbGi4ccccccccccccc' N  " #$% &   ^:  b$6d j,>->./0QR D+/A/;T :->./      !"#$%$&'%&() * + ,  ) - . - /! - , 0 ##1! -  ,  " F'J:G:H9 23, * .! - 456 - !.  3.6 * 7&8)4() * +   ,  41! - " F: ': G. H  79  :!    !     !1! - ";$;<;$%= - " FJ.'::G>.H=: %>+=31?@14 4 !.)+ F3=:'3:=G:3=H=:3 ;9A:.BC!DED@"352 + 13214" F>>:'JI:GJIJH>IJ FDG  DH   !"&";'2>,  2! - +1! - " FN& k  'N& k  l  GW;<HWm k  I!38JKL/142&M35NJK/4NJM4O&M3(P+NKM4" F:':G: H: QR8MS$/41N 34G3!.T" UN U !cN U !cN UJ KcN U> ! OVW4MX.)+L.B" FND: n: 'ND n GN oP& n: H?&//A b$p7+(,3-3./0 (A8  !" 4565*%;<W65;< N+6578Qo65- q /<r 2RY @TD/4Z####" >->J->.--->:->>->J----: 78  !"2%[;I2[7OQ[2&[2 s2  6tKpuC/27 s2  6tKp*$ %; U=. PX- U> PX-4 UV<aPXS473  d. WVaPXS;Y e. WVPX #4Y f. WVaPX #S;-4Y           4e4fGFgc ccccccccF N  " #$% &   ^:   b$6d j,>->./0QR D+/A/;T :->./      !"#$;$&';&() * + ,  ) - . - /! - , 0 ##1! -  ,  " F'.G:HQ& l / k  k P k  29  :!    !     !1! - ";$&<&$%= - " F.:'::G=H=: 7DG  DH   !"F"7'2>,  2! - +1! - " FN& k  'N& k  l  GW;<HWm k  %3, * .! - / * 56 - !.  3.6 * 2&!  )/ * () * +   ,  / * 1! - " F>: ': GI H  ;>!=31?=314 4 !.)+ F>.:'>:.G:>.H.:> F9A:.BC!DED@"352 + 13214" F>>:'JI:GJIJH>IJ I!38\]LYM4^2;&M35N\/4\]M;&M3(P+N]M4" FJ::'::G::H:: QR8MS$/4_`34G3.a" c\6@c\+&c\K c\ c;"v OVW4MX.)+L.B" FND: n: 'ND n GN oP& n: H?&//A 2. Tự luận: (7,75 điểm) (A8  !" 4565*%;<W65;< N+6578Qo65- q /<r 2RY @TD/4Z####" >->J->.--->:->>->J----: 78  !"2%[;I2[7OQ[2&[2 s2  6tKpuC/27 s2  6tKp*$ %S3/!M42IM35S3/b/4S3/$!M4I23 WV/oO*wO*EY WV/oO*-wE WUd '* ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc