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ĐỀ THI THỬ ĐẠI HỌC NĂM 2011 MÔN TOÁN KHỐI A, B pot

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4/U
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2
c x x c x
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c x c x
π π
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2 2
c x c x
π π
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c0

 
2 

c x
π
+ = −
!T#5


x k
π
π
= +

U

2
x k
π
π
= − +
4/U
4/U
4/U
4/U
/
c@h5!"#!"#C
  3
3 
  
  
x xy x y
x y x xy


− = −


− − = −


cfDi j

3
x xy u
x y v

− =


=


(!T5



u v
v u

= −

− = −


c05$!T#5&-<-4X-X3
c8*=#!T#5R-'<-4X-4
4/U
4/U
4/U
4/U
3 cfD;R
89J;XRJR(hdR;4%;(
7
x
π
=
%


t =
8*=



 



< <t t
I dt dt
t t
= − =
∫ ∫
cfD



< -u t dv dt
t
= =

 
-du dt v
t t
⇒ = = −
>&'$




 
   
< < 
 

 
I t dt
t t t
= − + = − −

ck&

  < 

I = − −


4/U
4/U
4/U
4/U
7 c%
c0OF<$&#+@(N#
 SH ABC⊥
clm##=#ID G#>?@(>?CD'<

4
24SEH SFH= =
cn
HK SB⊥
(<d <&d&'$#=#ID G#>?@>@
.#
HKA
/
cod <&d9!T?;?@;(


a
HA =
(
4
3
 24

a
SH HF= =

c8#>F&A#BF=
  
   3
4
KH a
HK HS HB
= + ⇒ =
c8#?F&A#BF=

4


3
3
4
a
AH
AK H
KH
a
= = =

3

3
AKH⇒ =

4/U
4/U
4/U

4/U
U
c@h
 
   
a b c c
ab c ab b a a b
+ − −
= =
+ + − − − −
4/U
c8*=
  
        
c b a
VT
a b c a c b
− − −
= + +
− − − − − −
p((J!"#MM;((&P)#4-;qX(X(X
J!"#
c Jj#]G#NAJ!"#!T
3
  
3/ / /
        
c b a
VT
a b c a c b

− − −

− − − − − −
;3 
fG#NR'$)E)

3
a b c= = =
4/U
4/U
4/U
2/
c

= !"#$%
 3
 
x t
y t
= −


= − +

= 
 3-u = −
ur
c?&P



 3 -   A t t⇒ − − +

c8=?@-

;7U
4


 - 

c AB u⇔ =
uuuur ur

/


/
AB u
AB u
⇔ =
uuuur ur
ur


U 3
2b U2 7U 4
3 3
t t t t⇔ − − = ⇔ = ∨ = −
c+g%<
 

3 7  3
 - (  - 
3 3 3 3
A A− −
4/U
4/U
4/U
4/U
1/
cJk&

4- -4M −
= 

- - 3u = − −
uur
JZk&

4--7M
= 

--Uu =
uur
c8=
 
-  7- r-7u u O
 
= − − ≠
 
uur uur ur

(
 
4--7M M =
uuuuuuur
ls
   
- / 2 7 4u u M M
 
= − + =
 
uur uur uuuuuuur
 JJZ# G#/
c0O^<D G#NJJZ;q^= 
-- n = −
ur

k&W

= !"#$%
  4x y z+ − + =
cpt]'+W-X-&Pu^(*== 
4/U
4/U
4/U
4/U
r/ cfv&)56Rq4
c8F6RsR;<#5
c8F6Rs
x ≠
(h !"#$%!"#!"#C


  
 <# 7   <# 7  <# 7 
x x x
x x x
+ =
+ + + + +
fD
<#  
x
x t+ =
(!T !"#$%

  
  t t t
+ =
+ +
#!T;;Xw3
cC;
<#   
x
x⇒ + =
 !"#$%'A#5
cC;Xw3

<#  
3
x
x⇒ + = −



 3
/7  x x⇔ + =
c
xd]'

r
x =
<#5c
x&

r
x >
%8cq
4/U
4/U
4/U
4/U
x&

r
x <
%8cy(d'c=#5J&']

r
x =
c<&d6#5 !"#$%L<R;

r
x =

2/ c=:Q4-4()9a;
cJ\B+ :5
 -  d O d⇔ <
c8=
  
/ / /
  
OAB
S OAOB AOB AOB= = ≤
8*=J59#?Q@<C])E)
4
b4AOB =


 - 

d I d⇔ =

m
⇔ = ±
4/U
4/U
4/U
4/U
1/
c


= !"#$%
 


3
x t
y t
z t
= −


= − +


=

c


= !"#$%

U 3
x s
y s
z s
= +


= +


=


c0z
 
-d A d B∩ ∆ = ∩ ∆ =
  -  -3 @M-UM3-A t t t⇒ − − +
c
  -3 2- 3 AB s t s t s t= + − + −
uuuur
(ua= 
-- 3n = −
ur
c
  {d R AB n⊥ ⇔
uuuur ur
H# !"#

 3 2 3
  3
s t s t s t+ − + −
⇔ = =


3
7
t⇒ =
cJk&
  3
 - - 
  r
A
= 

-- 3n = −
ur
;qJ= !"#$%
3
 
r
 
  3
z
x y

− −
= =

4/U
4/U
4/U
4/U
r/
cfv&)56
3
4
<# b 1 4
b 1 4
x
x
x >


− >



− >

#!T
b
<# 13x >
%
b
<# 13x >
q L!"#!"#C

3
<# b 1
x
x− ≤

b 1 3
x x
⇔ − ≤

3 r
3 b
x
x

≥ −








x
⇔ ≤
c<&dd #56
b
<# 1-|T =
4/U
4/U
4/U
4/U
o!&}6x&9<)m#%#)]~!C<=/

×