             !   "#  "#  "#  $ % & % ' ( )* + , $ -'.'/ . 0 1234 1234 5  $  ,6  ' 7'8 9  : 8. / 12-4 12-4 12-4 -21  ;  )6 $ 3'< 9- 8-, 99 8-  0 124 12-4 921 12-4 921  *  * % * % 6 % ,   =  5   89, 89' . 124 921  0>, % ? @  $ 4 8/, 91 8/ / 0 12-4 1234 12-4 1234  0 ;A$  0       !"#$%&'()*+,-. Chọn phương án đúng nhất trong các câu sau : ( mỗi câu 0,25 điểm ) $9 BC ∗ ,)DEFAG>FA ∗ -9. ,>H-'.'4  - 8   4 B 1 $- IJFAK6L*IMJ4*ILNG  O { } 9'-'.'/'4  8 O { } PQP 'PR4∈   O { } 1'9'-'.'/  B O { } 1'9'-'.'/'4  $. >IO { } 1'91' 'x y SJLG>F,$)TU  { } 1'91 A∈ 8 { } 91' 'x y A⊂  P ⊂  B { } 1'91' 'x y A∈ $/ VW,XY/ . S/ / NG  / 9- 8 9 9-  / 3 B < 3 $4 0ZNGXZ,>[\8,]  O8 8 ^8O8  O8O-8 B ^8O8LGO8 $ 8__<'91`NG  < 8 /<  /1 B <1 $3 "MHF>FJG>F,$)F,U  a.ba4 8 1ba  a91Ra9 B a:ba3 $< X6IFA)6c2J*,d3NG  9LGa9 8 3LGa3  9'a9'3LGa3 B 9'a9LGa3 $: eZPP ∈ 7_91`LGPb-MHG>F,$)TU  9'-'4'91 8 9'-  -'4'91 B 4'91 $91 >ZDZE,f8_eLg`S"NG>F,$)NGT  · · · 8  ,XhL,8 8 ,8XhL,8  ,8XhL,8 B ,8XhL,8 $99 CHJFA)6P>HZid-RPR.NG  d-'a9'1'9'-'. 8 d9'1'9'-'.  d-'a9'1'9'- B d9'1'9'- $9- "j C>kX>FA-<d_3d.-^4.`,*I  -<^3d.-a4. 8 -<a3d.-d4.  -<a3a.-^4. B -<a3^.-a4.  !"#/0()*+,-. Bài 1 : (1,5 điểm) KlmW ,S_a9/`^4^<^9/^_a3` S34a_.S4 - a/S. - ` S.3an.1d_4d9` - o Bài 2 : (2 điểm) 5 + ZF  )6P26   ,` 911aPO.-a_9.a` `9/a- x O-_- . a4` Bài 3 : (1,5 điểm) pX*& + > % PG.1'G.'G/1q,91> % FSWFA> % F, X*& + ]S86  F  > % F %  @ ,X*& + X>>H* + 311<11> % FS Bài 4 : (2 điểm) ,`= ( >, % ? @ O<ZSX6>, % ? @ N$  )6 @ ZrF,>>rO4ZS5  rS `X6,   @ ,,N$  )6 @ Z"F,>>"O-rS5  "rS &&123456 7 #  !"#)*+,-.#*8 $    9  :  ; <    sSJT 4 4 =  4    4  4 4  !"#)*+,-. =>+8 ?@?" +,- =>+# *+,- A.B 7 " * 7 "C*D 7 "ED 7 FGA H #IIIIIIJ: *+,- K.B 7 " * 7 "C*D 7 "ED 7 FGA H #IIIIIIJ: *+,- .B 7 " * 7 "C*D 7 "ED 7 FGA H #IIIIIIJ *+,- =>+# *+,- A.B 7 " * 7 "C*D 7 "ED 7 FGA H #LJ *+,- K.B 7 " * 7 "C*D 7 "ED 7 FGA H #LJ9MLJN9 *+,- =>+# B 7 " * 7 "C*D 7 "ED 7 FGA H #O 7  P Q R+"  H AFSTU V "CWA V #). *+,- =>+9# *+,- XY Z  B V " * 7 "CA H  A+ *+D H - A.B 7 " * 7 "CJ)-. *+D H - K.IIIIIIJ)-. *+D H - . O<ZSX6>, % ? @ N$  ) 6 @ ZrF,>>rO4ZS5  rS `X6,   @ ,,N$  ) 6 @ Z"F,>>"O-rS5. 1ba  a91Ra9 B a:ba3 $< X6IFA )6 c2J*,d3NG  9LGa9 8 3LGa3  9'a9'3LGa3