ĐÁP ÁN VÀ ĐỀ THI THỬ ĐẠI HỌC - TRƯỜNG THPT NGUYỄN HUỆ - ĐẮK LẮK - ĐỀ SỐ 151 docx


TRƯỜNG THPT NGUYỄN HUỆ
ĐỀ THI THỬ ĐẠI HỌC
MÔN TOÁN NĂM 2012 - 2013
Thời gian làm bài: 180 phút.
I. PHẦN CHUNG CHO TẤT CẢ CÁC THÍ SINH (7,0 điểm)
Câu 1.(2,0 điểm)
 
 y x x= − + −

( )
C
a !"#!$#%%&'()*+,
b. -'.'/0#12#13456789:;*<'()
( )
C
=!'!.>?# !@A7B:C
DC,*E***@1F**+,!">G5"#%H!'()
( )
C
=!D%'=1!I)#J#K
Câu 2.(2,0 điểm)!!**>/L#1I-#,G4
a.
 !#  * M!# 7 :*  
N
* 
x x x x
x
− − + − + +
=
+

b.
( )
OMN



+−=+ xxx
Câu 3.(1,0 điểm)E#4
∫
+
dx
x
x

*N
,#
Câu 4.(1,0 điểm)-#*F>AD*FPAD%GQ#1*?#=!CAD6,C

NOa
SB =
R!
SIR#1?PADC
⊥
7AD:E#.E*T!*F>AD%T#1**U'!.D
'"#>7A:
Câu 5.(1,0 điểm)*,C C*3/L#1J,V#,; ;*6W#1!#IX#14
  
  
N
  

a b c
a b b c c a
+ + ≥
+ + +
II. PHẦN RIÊNG (3,0 điểm): Thí sinh chọn một trong hai phần ( A hoặc B)
A. Theo chương trình chuẩn
Câu 6.a(1,0 điểm)
 
9 5
YS!>7Z:4 N
N[ M
+ =
 %'!.A78MB8N:CD78NBN:\*')#R,']
'!.^G]*7Z:,*3!@#E*P^DASH##K
Câu 7a.(1,0 điểm)!!>/L#1I-#4S1

79

_O:;S1

79;:

8S1

79_:

6O
Câu 8.a(1,0 điểm)W#1!#IX#14
:`#7:N7
a#N###

#
OO
#

#

#
∈∀+=++++
−
B. Theo chương trình nâng cao
Câu 6.b(1,0 điểm)I#1b>2#1R,']95C*-#%GQ#1ADC'!.7B8:%'!.
AG]*'/0#12#1349;586cR!^SIG#1'!.*+,DC'/0#12#1^>/L#1
I-#49_5_6c \*')#R,']**'!.ACDC
Câu 7.b(1,0 điểm)!!>/L#1I-#4
cd:N97S1:N97:N97S1:N9[7




N
=−+−+++
Câu 8.b(1,0 điểm)I#1T,!I!.#
NO
O
:M7 −
*F ,#!$G=#1SeGf
Hết
Cán bộ coi thi không giải thích gì thêm
gR%$#E!#4 3,#
CÂU Ý NỘI DUNG ĐIỂM

Câu 1 a. 8\46h
8 !"#!$#4;!H!=#=!%Q**4
B
S! S!
x x
y y
→−∞ →+∞
= +∞ = −∞
;!iG !"#!$#4


9 c
5j 9 ;[9B 5j c 
9 
=

= − = ⇔

=

g#1)* !"#I$#k!T#178lBc:%7B;l:C'(#1 !"#
I$#7cB:
g'=**!.G=!96cB5

68B'=**'=!=!96B5

6

8D#1 !"#!$#4


9 8lc;l
5m 8c;c8
5 ;l

88l
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
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b. n/L#1I-##']1!,'!.*+,3%7:4
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=−−−=
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⇔
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/0#12#13*<'()(C)=!'!.>?# !@
⇔

>7N:*F#1!@
>?# !@
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
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

≠
−>
⇔
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≠−
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⇔
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
≠
>∆
⇔
c
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p
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cpO

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{ }
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CÂU Ý NỘI DUNG ĐIỂM
Câu 2 a.
!iGT!@#4
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n/L#1I-#'V*/L#1'/L#1%H!4


c9*9!#M9*9!# =+−−−
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⇔=−+−⇔
=+−+−⇔
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N
9!#
c:9!#9*:7N9!#7
c9!#M9!#9*9*9!#
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+−=++

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=+⇒+=⇒+=
n/L#1I-#Ix#


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Câu
8b
,*F4
NO
N N
NO
[
NO
O
 O  O
NO
c
7  M:  M 7 N:   M
k k
k k
k
C
−
=
 
− = − = −
 ÷
 
∑
cCM
cCM
=#1W7T;N:SeGf
[


O
c NO
k
N
k
N
k N
k

− ∈



∈
⇔


∈


≤ ≤


O
c N
k i
i N
i
=



⇔ ∈


≤ ≤

⇒!∈•cBNB‚BNƒu5*F=#1eGf
cCM
cCM