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[    #     − + − +   +  !>+  ! +  ! +  !>+  ! − − + − + −    +  ! +  !  − + −     + − −      + − +  W8' W8' 23+1+W8'! {<?@8nA/0<  ^A  < <    <  < < < < <?@8nA/0 ^A       < ?@8nA8E {6&8F <   ó   ó+! ó  3     − ,   3  7&W *D ?=• ?=   − •   − ?R&a8F &8'*B  8nA5+3!7+   − 3   − ! W8' W8' W8' W8' 2351+8'! {   #   #      + =     − =   ó #  #  #     + =   − =  ó #  # j    + =   =  ó # #  #   + =   =  ó # #   =   =  ?R"*D"2(-+#3#! {, *D  + #! >>+ ! j   ∆ = − − − = + = > W8' 6*D "e$"   + #!  > + #!  >      − − + = = − − − = = −  #{  <  }j+! `.  + ≥ ! 6+!K  <}j+! , *D }$*}+<!+<j! 6+!*D "e$"  <+5&a!3  j+R! ?=  j  j #  ⇔ ⇔ = ±=  ,R"*B +!*D "5  #3  <# W8' W8' W8' 23,1+8'!  }+}!}+p! {, *D~€•<+}!‚  }>+}!   }}   }   }>> +}!  •7=G 6+p!5(z*D "e$"7=G {6*D "2-(ó>+}!q ó}q óq óq    ?R7=q   +p!*D "2-(  #{, *D+p!*D "7=G+s& ! 1     + !           + = − = −   = −   , *D[                 }     +    !  }    •[+}!  }+}!   }}   } +!  }>>##  }#  +}#!  ƒ ;-(LM O7*„O}#ó #  ?R7= #  [8aAU-$H W8' W8' W8' W8' W8' W8' W8' 23.1+#W8'! J7@8E {, *D · )(4 j  +!  · )'4 j  +D*FV*C… 89Y!  · )(4  · )'4  ;3*c[;2=FD*$Hj   ,)*[%;FV89Y89OT W8' [; k(e*B 89Y&aV)*[%;5(8'*B [; {O*($1, *D%;[%7 · )(4 j  +!  ~[%;7(z*ea%  · ()4   , *D · )& j  +D*FV*C… 89Y!  ~_[^7(z*ea_ O*(+1 , *D,)*[%;FV+*)1!  · ('4  · ()4 +%c*C*(%;! , *D · )& j  +D*FV*C… 89Y!  · &4 j   · &4  · &(4 j  j     ,)*^%;_FV  · )&  · (4 +*c$c7= · &( !+! , 5a*D[%%;+!  ~[%;*ea%  · ()4  · (4)   · &)  · (4 +! ,f+!7+!W/(  · )&  · &) _ · )& j  +%)1!  ~_[^7(z*ea_ #{do~[^_7~[;%*D µ [ D**( · )&  · )(4 j  k(  )& )4( ∆ ∆ ∽ )& )4 ) )( ⇒ =  > >)& )( ) )4 ⇒ = W8' W8' W8' W8' W8' Q!Q   $%Q/R+%$,+%$. /0 '56567  Câu 1: (1,5 điểm) !   }# ! %&"           − = −   − =  >, W$$V"*D"     =   =  Câu 2: (2 điểm) %&  }+!  #+!>+5 /0! ! ,**A*B 8'+!*D "e$"> ! ,**A*B 8'+!*D "e$"  W  † 4      > Câu 3: ( 2 điểm) ! |EG$'()*  #  #   #   # ) + − = − − + ! ?V89:8‡( 8'[+3!7/&/&7=89: 2> Câu 4 ( 3,5 điểm) %& *8t([^%*D89* &[JW5-8'_cˆ(F*8&aJ%+_Ozc7=JW%!> J*V(7(zD**B _51***a[^W[%5I5i567‰> ! %)H[6_‰5)*FV7*8AeZ*B 89Y&aV)* [6_‰> ! %)H^6>^[^J>^_ #! %)HZJ ⊥ 6‰> ! %)HO_ 8S1J%_6_‰Oz8S> Câu 5 (1 điểm) ,AU-*B $'()*   #      )    + = + − + + 7=•> !Y<"!=> Câu 1: (1,5 điểm) !   }# $*+<#! ⇒   3   ,  > ! J"           − = −   − =   *D"     =   =  ⇔        #   #   # # #           − = − − = − − = = −     ⇔ ⇔ ⇔     − = = = =     > Câu 2: (2 điểm) %&  }+!  #+!>+5 /0! ! [ ]  Š + !∆ = − + <+  #!<} 6+!*D"e$" ⇔ Š ∆ • ⇔ <}• ⇔ q< ?R7=q<+!*D"e$"> #! ?=q<>,s&")*?<s *D    +!3      #>        ⇔ +    !  <     ⇔ +!  }+  #!  ⇔   } 6, *D  +Oz,_`\!3  <#+,_`\!> ?R7=<#+!*D"e$"† 4      > Câu 3: ( 2 điểm) 1) |EG$'()*    #  #  #  #   #   # + # ! + # ! ) + − + − = − = − − + − +       #  #  #  # + # ! + #!  # #  + # ! + # ! + − + − − = − = + − − − + − +    + # ! + #! + #   #!+ #   #!  #+ − − = + + − + − + = > ! 689:*I7V*D2a2€ $> 2Š8‡( 8'[+3! ⇔  >$ ⇔ $> 2Š /&/&7=89:2 < ⇔  <> ?R*I7V52€<> Câu 4 ( 3,5 điểm) 1) do)*[6_‰*D · ·  j8) 9)= = +,s&,! ⇒  · ·  8) 9)+ =  ⇒ )*[6_‰FV> ,eZ*B 89Y&aV)*[6_‰5(8'*B [_ 2) do ∆ ^6_7 ∆ ^J[*D · ·  j&8 &:)= = +!3 · · 8& :&)= +*(D*^! ⇒  ∆ ^6_ : ∆ ^J[+>! ⇒  &8 & &: &) =  ⇒ ^6>^[^J>^_ 3) ·  j): = +! ⇒ J(F*89Y89OT[_ ⇒ [W6WJW_W‰*c(F*89YZ> · · 8): 9):= +7 *[^%8t(W[J589* &1*x589e*! ⇒  ¼ ¼ 8: 9:=  ⇒ 6J‰J ⇒ J(F*89(N**B 6‰+! Z6ZJ+*c$OT! ⇒ Z(F*89(N**B 6‰+! ,f+!7+! ⇒ ZJ589(N**B 6‰ ⇒ ZJ ⊥ 6‰> !k [^_ k %[_ k [^%  ⇔    [^>_6   [%>_‰   ^%>[J ⇔    ^%>_6   ^%>_‰   ^%>[J+7[^[%^%! ⇔    ^%+_6_‰!   ^%>[J ⇒ _6_‰[J>?[JOz8S 1_6_‰Oz8S> Câu 5 (1 điểm). ?=•W *D       #   #   +  ! + !           + ! >    + !  + ! + !                  )                    )   + + = + − + = − + + − + + +     − + = − + + +     +     − = − + + ≥ +  − =  ⇒ = ⇔ ⇔ =   − =   [...]... 2)2014 + 2015 = (1)2014 + 2015 = 1 + 2015 = 2016 S GIO DC V O TO TY NINH Kè THI TUYN SINH VO LP 10 NM HC 2014 2015 Ngy thi : 21 thỏng 6 nm 2014 Mụn thi : TON (Khụng chuyờn) Thi gian : 120 phỳt (Khụng k thi gian giao ) CHNH THC ( thi cú 01 trang, thớ sinh khụng phai chộp vo giy thi) Cõu 1 : (1im) Thc hin cỏc phep tinh ( a) A = 2 5 ) ( 2 + 5) b) B = 2 (... HN, nờn H l trung im cua EN Suy ra HK l ng trung bỡnh cua tam giỏc EAF Võy HK // AF Võy ED // HK // AF S GIO DC V O TO KHNH HO K THI TUYN SINH VO LP 10 THPT CHUYấN NM HC 2014 2015 MễN THI: TON (KHễNG CHUYấN) Ngy thi: 20/6/2014 (Thi gian : 120 phỳt khụng k thi gian giao ) THI CHNH THC Bi 1: (2,00 im) 1) Khụng dung mỏy tinh cõm tay, tinh giỏ tri biu thc: A = 1 8 10 2 +1 2 5 a a a +1 + 2) Rut gon...S GIO DC V O TO BèNH NH D B K THI TUYN VO LP 10 TRUNG HC PH THễNG NM HC 2014 2015 Mụn thi: TON Ngy thi: 28/6/2014 Thi gian lm bi: 120 phỳt (khụng k thi gian phỏt ) Bi 1: (2,5 im) a) Gii phng trỡnh: 3x 5 = x + 1 b) Gii phng trỡnh: x 2 + x 6 = 0 x 2 y = 8 c) Gii h phng trỡnh: x + y = 1... T (1) v (2) suy ra: AM = R 2 AOM vuụng tai O M l im chinh gia cung AB S GIO DC V O TO QUNG NGI K THI TUYN SINH VO LP 10 THPT NM HC 2014-2015 MễN : TON (khụng chuyờn) Ngy thi: 19/6/2014 Thi gian lm bi: 120 phỳt (khụng k thi gian giao ) CHNH THC Bi 1: (1,5 im) a/ Tinh: 2 25 + 3 4 b/ Xỏc inh a v b ụ thi hm sụ y = ax + b i qua im A(1; 2) v im B(3; 4) c/ Rut gon biu thc A = x x +2 + x+4 : vi x... GIO DC V O TO TP. NNG CHNH THC K THI TUYN SINH LP 10 THPT NM HC 2014-2015 MễN: TON Thi gian lm bi: 120 phỳt Bi 1: (1,5 im) 1) Tinh giỏ tri cua biu thc A = 9 4 Rut gon biu thc P = x 2 2x 2 + , vi x > 0, x 2 x2 2 x+x 2 Bi 2: (1,0 im) 3 x + 4 y = 5 Gii h phng trỡnh 6 x + 7 y = 8 Bi 3: (2,0 im) Cho hm sụ y = x2 co ụ thi (P) v hm sụ y = 4x + m co ụ thi (dm) 1)V ụ thi (P) 2)Tỡm tõt c cỏc giỏ tri cua... thc A = (4x5 + 4x4 5x3 + 5x 2)2014 + 2015 Tinh giỏ tri cua biu thc A khi x = 1 2 2 1 2 +1 - HấT Giỏm thi coi thi khụng gii thich gỡ thờm GI í BI GII TON VO 10 KHễNG CHUYấN Lấ KHIấT QUNG NGI Bi 1: a/ Tinh: 2 25 + 3 4 = 10 + 6 = 16 b/ ụ thi hm sụ y = ax + b i qua A(1; 2) nờn a + b = 2, v B(3; 4) nờn 3a b = 4 Suy ra a = 3, b = 5 Võy (d): y = 3x + 5 x 2 x+4 1 x +2 :... - HấT S GIAO DC O TO NINH THUN K THI TUYN SINH VO LP 10 THPT NM HC 2014 2015 Khoa ngy: 23 6 2014 Mụn thi: TON Thi gian lm bi: 120 phut -Bi 1: (2,0 im) a) Gii phng trỡnh bõc hai: x2 2x 2 = 0 3 x + y = 2 b) Gii h phng trỡnh bõc nhõt hai õn: 2( x y ) 5 x = 2 Bi 2: (2,0 im) Cho hm sụ: y = 2x 5 co ụ thi l ng thng (d) a) Goi A, B lõn lt... + ab 2 Cụng (1) (2) (3) vờ theo vờ Q 2(a + b + c) = 4 2 Khi a = b = c = thỡ Q = 4 võy giỏ tri ln nhõt cua Q l 4 3 0,25 0,25 S GIO DC V O TO K THI TUYN SINH VO LP 10 THPT NM HC 20142015 PHU TH Mụn : TON Thi gian lm bi: 120 phut, khụng k thi gian giao ờ thi cú 01 trang CHNH THC Cõu 1 (1,5im) a) Trong cỏc phng trỡnh di õy, nhng phng trỡnh no l phng trỡnh bõc 2: x 2 + 3x + 2 = 0; 3x 2 + 4 = 0 2x... chuyn xong mụt na sụ lng thc, thc phõm; sau o ngi th hai chuyn hờt sụ con lai lờn tu thỡ thi gian ngi th hai hon thnh lõu hn ngi th nhõt l 3 gi Nờu c hai cung lm chung thỡ thi gian chuyn hờt sụ lng thc, thc phõm lờn tu l 20 7 gi Hoi nờu lm riờng mụt mỡnh thỡ mụi ngi chuyn hờt sụ lng thc, thc phõm o lờn tu trong thi gian bao lõu? Bi 4: (3,5 im) Cho na ng tron tõm O, ng kinh AB = 2R Goi M l im chinh gia... 10 : (1 im) Cho t giỏc ABCD nụi tờp ng tron tõm O, bỏn kinh bng a Biờt AC vuụng goc vi BD Tinh AB2 + CD 2 theo a - HT Giỏm th khụng gii thớch gỡ thờm Ho v tờn thi sinh : Sụ bỏo danh : Ch ký cua giỏm thi 1: Ch ký cua giỏm thi 2 : BI GII Cõu 1 : (1im) Thc hin cỏc phep tinh ( ) ( 2 + 5 ) = 2 ( 5 ) = 4 5 = 1 2 ( 50 3 2 ) = 100 3.2 = 10 6 = 4 a) A = 2 5 b) B = 2 2 Cõu 2 : . &2= +*c*C**(_%! · · &2 12= +)*_^g! k(  · · 01 12= +! %)N *x*D · · 21 10= +! ,f+!7+!/( ∆_g ∽ ∆_h+>!  > 2 1 1 2 '0 1 0 ⇒ = ⇒ = `'_g>_h5=-_5=->_.O*_(F**(U^%1_≤wJ⇒7R_ 5=-O_wJ>J