Đề cương ôn tập Toán 7(NH2010-2011)

Trường THCS Phạm Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định ĐÊ ̀ CƯƠNG ÔN TÂ ̣ P HK I MÔN TOA ́ N 7. I. ĐA ̣ I SÔ ́ .                                   !  "        #  "  $      %&   '()    *+     ,"  -.      "  %      "  //"  )  $)  $    "  //"        "   +   01    !  "    )      "  !       23        !        4-5 ≠ 67 Ba ̀ i 18#    /.  /   79,!296!'0:;%7   '   ' :   + −  ÷   7  ' 6!  6!' ' ,     − −  ÷  ÷     $7  6!, , + .7       '  '  − − + <7 , : ' : 6!, ' , , ' − + − +  Ba ̀ i 28#   7    ;'%7: ' 8 ' 7     −   +  ÷   $7   , ' 0   −  ÷   .7:    =   <7   ,        ÷   7,9  8  ;5,  ;=7 Ba ̀ i 38>"  /"            +  )    &    8 7259=7459':7'%76!0'!,46!:!2 76!05974596!:7$72'40': Ba ̀ i 4:?      +  /"   2   ' @ @ @ 0 , '6 , − −   )  $)  $    "  //"     Ba ̀ i 58?      +  /"  8 , , 2  @ @ @ 0  ,  − −   )  $)  $    "  //"  "  +   Ba ̀ i 68>  *+      "  //"  82!:@2!'=@2:!0'@,6!'6@6!,,@06!::0 Ba ̀ i 78>  *+        82=:@2=:@,2=@'0: Ba ̀ i 88#  8 ': ' =@ =66@ 6!0'@ @ @ 6!6 66 , Ba ̀ i 98#  -!%  8 7     ,  x   − + =  ÷   %7-5-9,7467!-9!,4'!:$7 x 4! .7 x 4  '   -A6<7 x 46!,  -B67 !, x− 4!7!09 6!x − 46 7   0x = 7 : 2  x = 7   x x = 7 , 2 x y =   -;4' 7-42  -9490/7  0 , x y z = =   -9;C42D7  = x y =   -;4' Ba ̀ i 98E  #&  -.  /      *)  )  "    F      )    %  #&  )  "     6F    %+)   Ba ̀ i 108G+    "  )  -349  -4:#           Ba ̀ i 118G+-      "    -4,  49 7#    *      )  -49 %7#    *    -  )  4 Ba ̀ i 128H  +      "  )        2      )    %  *&       )      2!2  O 140 ° 130 ° HÌnh 2 D C B A 4 3 2 1 4 3 2 1 b a c HÌnh 4 B A 3 2 14 1 b a c HÌnh 5 B A Trường THCS Phạm Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định Ba ̀ i 138E        "          ,2G        )      8@'@,@2#    $        Ba ̀ i 148E  ,$"  &  '+  6$"  &  %+ Ba ̀ i 158E  6  $"  +  &  !0H+  $"  +  +    )      +  0   Ba ̀ i 168G+-      )      49  -4=#           Ba ̀ i 178I  )      J  E  6/  H+  )  +      E  J  %+/    "         E  J%&  6!="  "        J  E Ba ̀ i 188E  -      )  -4,  42H      *      )  -49' Ba ̀ i 198#  )    *      $      ,)    *+'      +  :)  *     $  )  %+" Ba ̀ i 208I  )  -.  /!  )  -.  !  )  %  *    D  )  )  -.   /  )  !1-.    K)  !%    ')  #  "      )  !%  *&    "       )    ,,F Ba ̀ i 218E      -+        6)  H+  ,      -+    +    %+ )   Ba ̀ i 228G+<5-74-;#  <57@<5   7@<597 Ba ̀ i 238G+5-74 , x #  <57@<5,7@<597 Ba ̀ i 248.          84   x @49-@4   x  Ba ̀ i 258.          84-!  *  J59@07+            *  + II. HI ̀ NH HO ̣ C     +      H)  &  +  #**      +  &   $"    "  %      "  )  &  ++ 1      %+        !+  +         'E*)  )  /%&      5  9  9  @  9+  9  @+  9  9+  7 ,#*)  )  /%&      9+  +       Ba ̀ i 18#*+  +  "  &  /+      !    &  /+  +   Ba ̀ i 28HLJ  LE*+  +        + Ba ̀ i 38.  )  **    +  &  JE4,  .   Ba ̀ i 48.  )  **    +  &  GM42  .   Ba ̀ i 58#*+  !)  &  $  )  **    +  &    + Ba ̀ i 68G+ · 6 06xOy = >"    J&  *+ · xOy .  JH+  L-! J3+  )  L Ba ̀ i 78#*+  '      &  /+  +.*+!    !*+  /   Ba ̀ i 88#*+  ,+%  8 N?+  +.*+)   µ  A N1    )   µ  A N#*+  /  )   µ  A  Ba ̀ i 8-18#*+  0+  8 µ  A 406 6 ! µ ¶     B B= G  +  8FF%  HÌnh 1 O E F D C B A HÌnh 3 d D C B A b a B A 1 c 2 1 HÌnh 6 2 b a B A 1 c 2 1 HÌnh 7 Trường THCS Phạm Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định Ba ̀ i 98G+  2!%  8FF%   ¶ 6  06B = #   µ  A  Ba ̀ i 108G+  =!%   ¶ µ 6 6  06 @ 6A B= = G  +  J-FFE Ba ̀ i 118#*+  :+FF%!%   µ 6  06A = #    +  E @ E ' @J  @E   Ba ̀ i 128G+FF%   µ ¶ 6   '6A A− = #  +  E  @E   Ba ̀ i 138?      + c b⊥ N M m c b a 50 ° 130 ° Ba ̀ i 148G  +  JEFFGM Ba ̀ i 158G+  JEG+   µ µ 6 6 6 @ 26A B= = #  +  G Ba ̀ i 168G+  JEG+   µ µ 6 6 =6 @ 6B C= = #/"     +   J&  EG)  M#   · BAC @ · ADC @ · ADB  Ba ̀ i 178G++  -L+    +%&  06 6 !L  /"    +  -L 7#  +  -L %7?+  L-O!LO      L-!L#   · -PLP  Ba ̀ i 188G+  JEG+  JE4JG!I  *    EG 7GF µ µ B C= %7GF AM BC ⊥ Ba ̀ i 198G++  &  JE.  *+  5J@JE7  *+  5E@EJ7&  )  G  MGIQ87 ∆ JEG 4 ∆ JEM %7 ∆ JGM4 ∆ EGM Ba ̀ i 208G+ ∆ JEG.    )  *+  5E!EJ7  5G!GJ7&  )  M5  J7GIQ8EG  /"      · ABD  Ba ̀ i 218G+)  &  JE1)  **  $  JE&  JE  H?+  I        )   &  $5I ≠ H7GIQ8IJ4IE Ba ̀ i 228G+  .  8 GIQ8 ∆ JLG4 ∆ ELG Ba ̀ i 238H)  &  JE  GM&    *  L  )  &  GIQ8JGFFEM Ba ̀ i 248(*  I  JE!.  )  &  +  )  JE#*)  &  +  "    3 GIQ83I  /"     · AKB  Ba ̀ i 258G+ ∆ JLE+  LJ4LE#/"    +  L&  JE)  M GIQ87MJ4ME %7LE ⊥ JE  yx 2 A B HÌnh 8 3 4 HÌnh 9 4 3 2 b a B A 1 c 2 1 x O D C BA y x A C B O C B A x 20 ° Hinh 2 E D D C B A Hinh 3 3 2 1 B A c b a Trường THCS Phạm Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định E  08G+ ∆ JEG!  /"    +  E  +  G&  )  L3.  LM ⊥ JG!LR ⊥ JEGIQ8LM 4LR Ba ̀ i 278G+ ∆ JEG+  JE4JG>"    M*  JE!  R*  JG++JM4JR 7GIQ8ER4GM %7?+  L  +    ER  GMGIQ8 ∆ ELM4 ∆ GLR Ba ̀ i 288G+  ∆ JEG+  S  *  EG#*    SJ"    3++S34SJGIQ8 · · CAI BKI=  Ba ̀ i 298G+ ∆ JEG5JEAJG7!I  *    EG3.  ER  GT+  )  JI5R  T   )  &  JI7GIQ8ER4GT ĐÊ ̀ THI THƯ ̉ Bài 1:56!2,7#  8   :  6!, 8 '  0 0     + −  ÷  ÷     Ba ̀ i 2856!2,7#  8 , , = =   2  2  + + − + Bài 3: 56!,7>  *+          "  //"  86!'2@!2=' Bài 4: 56!2,7G+    4<5-74-9#  <567@<57@<5N7 Bài 5:56!2,7#  -!%  8 ' 2 x y =   -;4 Bài 6:56!2,7G+  )      "  )    )  -3-4  4N=! #          Bài 7: 56!2,7G+  !    +- Bài 8:5!677.          4N- %7E&            *    -4N Bài 9:5!67G+%  ,0"+        *+  H+  "  %+"   +      *+'  5&"      "  7 Bài 1085!67G+  !%  FF%   µ µ 6   6A A+ = #  +  E   Bài 11:5!67G++  -L  +  %.  !L  /"    +  -L>"    J *L-!"    E*L++LJ4LE>"    G*L!   GJ4GE Bài 12: 5!67G+  .  !  8 ∆ JEM4 ∆ JGM ' . Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định ĐÊ ̀ CƯƠNG ÔN TÂ ̣ P HK I MÔN TOA ́ N 7. I. ĐA ̣ I SÔ ́. HÌnh 5 B A Trường THCS Phạm Ngũ Lão – Ninh Hòa Định hướng đề cương HKI năm học 2010 – 2011 Môn Toán7 GV soạn: Nguyễn Tấn Định Ba ̀ i 138E  