# De on kiem tra HKI, khoi 11


Phần chung

sin9 3 cos9 1x x− =

2 7 2
, ,
18 9 54 9
k k
x x k
π π π π
= + = + ∈¢
 !  "#\$%%&%%'%()* +,-./#\$0. 1+, "#\$2! ,/
3456
##\$
78-9 -#: #;  <\$+,(=>?! #/@ 1:,(=?/@A
B5 @
#
15
( )
216
P H =
C#\$0.
n
-D
2 2 2 3 3 3
2 100
n n
n n n n n n
C C C C C C
− −
+ + =
#
4n =
&-BEAF -G9H?I% -,JKL?M

NIM7

O
3LP?M7

NIMC

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KLP
#US3R0+TJKLJKLP(
• <3R0VW%73X#\$3R02O
• <3R0V%73X#\$3R02OW
Phần riêng7
Theo chương trình cơ bản
5,
cos3 4cos2 3cos 4 0x x x− + − =
#
,
2
x k k
π
= + π ∈ ¢
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, Y
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,-.
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Theo chương trình nâng cao
5+de
n
(#\$/I.c%f
3 3−n
a
(A#\$ g,
3 3−n
x
-2,,
h  g,
( )
( )
2
1 2+ +
n
n
x x 
n

3 3
26

=
n
a n
#
5n =
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, Lhl_k`iiL
+ -,! \]3mknii\]
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F SD∈
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_`k(6

Phần chung 

2 2
4sin 5sin cos 6cos 0x x x x− − =

3
arctan2 , arctan ;
4
x k x k k
 
= + π = − + π ∈
 ÷
 
¢
L1+,-./#\$.p5 "#\$q92! ,/ "#\$=/.
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#775#\$
7_9:0Cr/ =/4%5r/ =/?,Lfs/.Cr/ =/>?! 
#/@-Cr/1 1 r//43/?,
 #
194
( )
210
P A =
CA#\$ g,
8
x
-2,,h  g,
( )
8
2
1 1x x
 
+ −
 
#tA#\$ g,
8
x
(
3 4
8 8
3 238C C+ =
&-BE3eAF -G93/q1 H?I% -Sr/,I<H1 
r/,I
4
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,
4
O
Q
π
 
 ÷
 
 g,JKL?M

NI

OC
#LP
2 2
2 2
4
2 2
x y
   
− + − =
 ÷  ÷
   
Phần riêng7
Theo chương trình cơ bản
5,
( ) ( )
2cos 1 2sin cos sin2 sinx x x x x− + = −
#
2 , ,
3 4
x k x k k
π π
= ± + π = − + π ∈ ¢
,L-Y
Z
 -
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a
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
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b
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5+A#\$ g,
7
x
-2,,h 
( )
2n
2 3− x
%-1/I.c
-D
1 3 5 2n 1
2n 1 2n 1 2n 1 2n 1
C C C ... C 1024
+
+ + + +
+ + + + =
#
2 10n =
%A#\$ g,
7
x
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7 7 3
10
3 2 2099520− = −C
+L- 1\L] 1!I(9h! (pfH(,- g,,
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7
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sin 2 sin5 cosx x x= −

, ,
16 2 8 3
k k
x x k
π π π π
= + = + ∈¢
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Generate time = 0.33544301986694 s. Memory usage = 1.94 MB