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By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
NguyÔn v¨n hång
Tuyển tập những bài toán tích phân hay và khó
(Tài liệu hữu ích cho các em học sinh lớp 12 ôn thi đại học)
Hà nội: 2012
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) I. Tích phân hàm hữu tỉ:
1
30
xdx(x 1)+∫1.
2x2
21 7 12dx
x x− +∫ 15.
4
23
13 2
dxx x− +∫
( )
2. 1 2
40
x 1dxx 1
−+
∫ 16. 2
21
11
dxx x +∫ 3.
1
30
3dx1 x+∫17.
2
5 21
1 dxx x+∫ 4.
1
4 20
dxx 4x5.
31
4 20 6 5x dx
x x+ +∫
6. 2 2006
20081
(1 )x dxx+
∫
7. 1 3
20 1
x dxx +∫
( )
8. 2
41 1
dxx x +∫
( )
9. 1
221 1
dx
x− +∫
10. 2 2
4 21
11
x dxx x
+− +∫
11. 1
20
11
x dxx++∫
12. 1
20
2 11
x dxx x
−+ +∫
13. 1
20 1
dxx x+ +∫
14. 1
30
(3x 1)dx(x 3)++
∫
18. 3+ +
∫
( )
dxxx∫ ++
1
0 22 231
19.
dxx
xx∫ +
++1
0
2
323
20.
1 3 2
20
x 2x 10x 1dxx 2x 9+ + +
+ +∫
21.
1 2
20
x 3x 10 dxx 2x 9+ ++ +
∫ 22.
dxx
x∫ +
1
0 2
5
1 23.
4
21
dxx (1 x)+∫ 24.
dxxx
x∫ ++
+3
1 24
2
11
( )
25.
∫ +
2
1 5 1xxdx
26.
1
4 20
x dxx x 1+ +∫27.
dxxx
∫ ++1
0 2
4
11
28.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
29. dxx∫ −
2
12
2
127xx +
30. 1
2xdx
0 (x 1)+∫
31. dxxx∫ +
+1
0 6
4
11
32. 1
30
3dx1 x+∫
33. ∫ +2
1 3(xxdx
)1
34. 2
21
xdxx 2− +
∫
35. ∫ −
1
0
2
4 2xdxx
36. ∫ −
1
0 4 2xxdx
37. dx++
12
xx
∫3
12
23
38. dx+1xx
x∫ +
3
02
3
2
39. ∫1
0 2( xxdx+ 3)1
40. dx+ 6xx
x∫ +
+1
02 5
114
41. dx1x
x∫ −
21
02
4
42. 4 22
20
x x
x 4
− ++∫
1dx
43. 3
31
dx
x x+∫
44. x dxx
3
20
3
1+∫
45. ∫ −+ )4)(1( 22 xxdx
46. ∫ +
1
0
2
1xdxx
47. 1
20 3 2
dxx x+ +∫
48. 2
20
16
x dxx x
+− −∫
49. 3
22 3 2 1
dxx x− −∫
50. 12
20 4 4
dxx x 3− −∫
51. ∫− +−
0
124
3
34xxdxx
52. ∫ +
2
1210 )1(xx
dx
53. 2
4 2
11
x dxx x
−+ +∫
54. ∫ +
1
022
3
)1(xdxx
55. 73
8 42 1 2x dx
x x+ −∫
56. 1
20 1dx
x+∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) 1
4 20 4 3dx
x x+ +∫ −∫4
4x dxx 1
57.
58. 1
20 1dx
x x+ +∫
59. 1
20
24 5x dx
x x−
− −∫
60. 3
20 3dx
x +∫( )
61.
20
1
21
xx−
+−∫
( )
62. 2
51 1
dxx x+∫
63. ∫ −
3
23 3xxdx
64. ∫ −
2
137 10 xx
dx
65. ∫ +
3
13 5xxdx
66. ∫−
− +
1
26 9xxdx
67. ∫ −
2
1511 8xx
dx
68. −∫ 4
dxx 1
69. −∫ 4
xdxx 1
70. −∫
2
4x dxx 1
71. −∫
3
4x dxx 1
72.
∫ 4xdx
x +73.
1
∫3
4x dxx +
74. 1
−∫
2
4x 1 dxx + 1
75.
∫2
4x + 1 dxx + 1
76.
∫ 4dx
x +77.
1
∫2
4x dxx +
78. 1
∫4
4x dxx +
79. 1
−∫ 3dx
x 180.
∫ 3dx
x +81.
1
−∫ 3xdx
x 182.
−∫ 6dx
x 183.
−∫ 6xdx
x 184.
−∫2
6x dxx 1
85.
−∫3
6x dxx 1
86.
−∫4
6x dxx 1
87.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
88. −∫
5
6x dxx 1
89. −∫
6
6x dxx 1
90. −
∫4
6x 1 dxx + 1
II. Tích phân hàm vô tỷ:
1. 2
1 1 1xdx
x+ −∫
2. 7 2
1x dx+
30 x +∫
3. 6
4 1dx
2 2 1x x+ + +∫
4. 10
2 1dx
5 x x− −∫
5. 1
3dx
0 1 1 x+ +∫
6. 2 1
5dx−
1
x xx −∫
7. ∫ +0
3 1x3
2 dxx
8. ∫1
3 1x −9
dxx
9. ∫+
+
02
2x
x3 35
1dxx
10. ∫+x
1 dxx
11. ∫− +1 5
2x
dx+
4
4
12. ∫+
2
05
4
1dx
xx
13. ∫ −++
2
1 22 xxxdx
14. ∫−
+0
1
1 dxxx
15. ∫ +3
0
32 .1 dxxx
16. ∫ +1
0
23 3 dxxx
17. ∫ −1
0
25 1 dxxx
18. ∫− +++
−3
1 3133 dx
xxx
19. ∫ ++3/7
03 13
1 dxx
x
20. dxx
xx∫
+
+1
03 2
2
)1(
21. ∫ +1
0
2 1 dxxx
22. ∫− +++
−3
13 31
3 dxxx
x
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) 1
0
x dx2x 1+∫
93
1
1x x dx−∫23.
24. ∫ + dxxx 32 2
25. ∫ −1
0
23 1 dxxx
26. 22
22
x 1 dxx x 1
−
−
+
+∫
27. 4
22
1 dxx 16 x−∫
28. 1
2 23
1 dxx 4 x−
∫
29. 6
22 3
1 dxx x 9−
∫
30. 2
2 3
0x (x 4) d+∫ x
31. 2
2 2
1x 4 x d
−−∫ x
32. 24
4 33
x 4dxx−
∫
33. 22
22
x 1 dxx x 1
−
−
+
+∫
34. 1
0
1 dx3 2x−
∫
35. 1
5 2
0x 1 x d+∫ x
36.
2
31
1 dxx 1 x+∫37.
12 3
0(1 x ) dx−∫38.
2
30
x 1 dx3x 2++
∫39.
2 3
25
1 dxx x 4+
∫40.
22
04 x d+∫41. x
21
0
x dx(x 1) x 1+ +∫42.
1
20
1 dx4 x−
∫43.
3
22
1 dxx 1−
∫44.
38
1
x 1dxx+
∫45.
4
27
1 dxx 9 x+
∫46.
1
0
3 dxx 9 x+ −
∫47.
1
33
1 dxx 4 (x 4)− + + +
∫48.
6
4
x 4 1. dxx 2 x 2−+ +∫49.
By Th.S Ng n Hong: 0979. 979. 489(Mê Linh – Hà Nội) uyen Va50.
0
21 x 2−
1 dxx 9+ +
∫
51. 3
2
1 dxx1 4x −
∫
52. 2
2
2x 5 dxx 13
−
+ +2 x 4−∫
53. 1
15 8x d+∫0x 1 x
54. 4 2 dx
4∫1 x 5− + +
55.
222
2
x dx−0 1 x
∫
56. 37
2
x dx3
0 1 x+∫
57. 23
2 dxx+
1
x 1∫
58. 2
3
2dx
−
2
0
x
1 x∫
59. 2
23
1
x x∫ 2
dx1−
60. 2
0 (4∫ 2 21 dxx )+
61. 7
2 2 x∫1 dx
1+ +
62. 2
1 x 1∫ 3
1 dxx+
63. 3
20
x dxx 1 x+ +
1
∫
64. 1
21
1 dx1 x 1 x− + + +∫
65.
12
212
1 dx(3 2x) 5 12x 4x− + + +
∫
66. 21
20
x dxx 4+
∫
67. 1
312
x dxx 1+∫
68. 1
2
03x 6x 1dx− + +∫
69. 1 2
0
x 1 dxx 1−+∫
70. 1
0x 1 xdx−∫
71. 7 9
3 20
x dx1 x+
∫
72. 1
2
1/21 x d
−−∫ x
73. 3
2
2
x 1dx−∫
74. 1
2
0
x 1d+∫ x
75. 3
22
dx
x x 1+∫
76. 1/ 3
2 20
dx
(2x 1) x 1+ +∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) 1
3
0
( 3 1)x x dx+ +∫2 2
2
0x x 1d+∫ 77. x
78. a
2 2 2
0x a x dx (a 0)− >∫
79. 1
0
dx1 x+∫
80. 1
0
dxx 1+ +∫ x
81. 1
3 2
0x 1 x d+∫ x
82. 1
2 2
0x 1 x d−∫ x
83. 1 2
x1
1 x dx1 2−
−+
∫
84. 1 2
20
(x x)dx
x 1
+
+∫
85. 2
30
x 1 dx3x 2++∫
86. 2
2 3
0x x 1dx+∫
87. 3 2
0
x 1 dxx 1++∫
88. 10
5
dx
x 2 x− −∫1
89. 42
50
xdx
x 1+∫
90. 2
2 3
1
2x x dx+∫
91.
2 2
30 1
x dxx +
∫92.
2 2 2
04x x dx−∫93.
2 2 2
0
a
x x a dx+∫94.
23
21
9 3x dxx+
∫95.
4
20
1(1 1 2 )
x dxx
++ +∫96.
8
23
11
x dxx−
+∫97.
13 2
0
( 1) 2x x x dx− −∫98.
4 3 2
20
2 31
x x xdxx x− +
− +∫99.
2 3
3 20 4
x dxx+
∫100.
22
1
4 xdx
x−
∫101.
+ +∫
2 5
2 22
xdx
(x 1) x 5102.
+ +∫1
20
dx
x x103.
1
+ −∫
21
20
x dx
3 2x x104.
By Th.S Ng n Hong: 0979. 979. 489(Mê Linh – Hà Nội) uyen Va
105. −+
2 xdx
2 x∫2
0
106. −
∫21
60
x dx
4 xIII. Tích phân hàm mũ và logarit:
1. 21
x x(2x 1)e dx−−0∫
2. ln 2
x 1d−∫0
e x
3. 1 1
x0
dxe 4+∫
4. 1 x 2) dx+
x0
(1 ee∫
5. 2
x dx1
11 e−−∫
6. 2x1
dx−
x0
ee 1− +∫
7. xln 2
x0
1 e1 e−+∫ dx
8. x 2
2x) dx
1
0
(1 e1 e++∫
9. ln2
x0
dx
e 5+∫
10. 24
0
x
x
e de
π
∫ 1x−
11. 1
2x0
1e e+∫ x dx
12. 2x2
x0
e dxe 1+∫
13. xln 3
x x0
e dx(e 1) e 1+ −
∫
14. ln 3
x0
1 dxe 1+
∫
15. x1
x0
e dxe 1
−
− +∫
16. 1
2x0
1 dxe 3+∫
17. xln 3
x 30
e dx(e 1)+
∫
18.
14x 2x2
2x0
3e e dx1 e
+
+∫
19. 1
x0
1 dx3 e+
∫
20. x1
x x0
e dxe e−+
∫
21. ∫+4
02
2
cos
π
xetgx
22. ln5
ln3 2 3x x
dxe e−+ −∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
2sin x
0(e cos x)cos x dx
π
+∫23.
24. 22
sin x 3
0e .sin x cos x x
π
∫ d
25. 4
0ln(1 tgx)dx
π
+∫
26.
3e 2
1
ln xdx
x ln x 1+∫
27. e
1
1 3ln x ln x dxx
+∫
28. 1 3
2
1ln(x x 1) dx
−
⎡ ⎤+ +⎢ ⎥⎣ ⎦∫
29. 2e
e
ln x dxx∫
30. 2
2
0ln( 1 x x)dx+ −∫
31. 1
20
ln(1 x)dxx 1++∫
32. 1
3 2ln1 2ln
e x dxx x
−+∫
3 2e
1
ln x 2 ln xdxx+
∫
( )21
lnln 1
e x dxx x +∫
33.
34.
e 2
1
1 ln x dxx
+∫ 35.
e
1
3 2 ln xdx
x 1 2ln x
−+∫36.
2
1 ln
e
e
dxx x+∫37.
2
1
(1 ln )e xx
+∫38.
3
1
6 2lne xx
+∫39.
3
1
1 lne xx+
∫40.
1
2 lne xdxx+
∫41.
e
1
2 ln xdx2x+
∫ 42.
e
1
x (x 2)ln xdxx(1 ln x)+ −
+∫ 43.
e x
x1
xe 1 dxx(e ln x)
+
+∫ 44.
3e 3
1
ln x dxx 1 ln x+∫ 45.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) IV. Tích phân hàm lượng giác:1.
0 sin 2x2
2
dx(2 sin x)−π +∫
2. 2
5
0sin x∫ dx
π
3. 3
2
4π
3tg x dx
π
∫
4. 3
2 2
3−
1 dxsin x 9cos x
π
π +∫
5. 4 sin cos
20 sin 2 cosx xdxx x
π
/2cos 2xdx
π
/ 4cos4xdx
π
/ 42 4sin xcos xdx
π
∫
+∫
6. 2 2
0sin x∫
7. 2
0cos x∫
8.
0
9. 2 cos x 1 dx
x 2
π
−+
2cosπ
−
∫
10. 2
0
1 si1 3co
π
++∫
n x dxs x
11. 42
4 40
cos x dxcos x sin x
π
+∫
12. 62
6 60
sin .sin
x dxx cos x
π
+∫
13. 2
0
1 cos x dx1 cos x
π
−+∫
14. 2
4
0sin x dx
π
∫
15. 3
4
4
tg xdx
π
π∫
11
0sin xdx
π
∫
16.
17. 6
0
xsin dx2
π
∫
18. 2
2
3
cos x dx(1 cos x)
π
π −∫
19. 2
0∫ 5 4cos x sin xdx
π
20. 2
4 4
0cos 2x(sin x cos x)dx
π
+∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
3 32
3
sin x sin x cot gx dxsin x
π
π
−∫
43
0tg x dx
π
∫21.
22. 4
5
0tg x dx
π
∫
23. 34
20
sin x dxcos x
π
∫
24. 2
20
cos x dxcos x 1
π
+∫
25. 2
2
0cos x.cos 4x dx
π
∫
26. 4
4
0cos x dx
π
∫
27.
4
60
1cos
dxx
π
∫
28. 32
0
4sin x dx1 cosx
π
+∫
29. 32
0
cos x dxcos x 1
π
+∫
30. 2
3
0cos xdx
π
∫
31.
26 3 5
01 cos x sin x.cos xdx
π
−∫32.
32
20
sin x.cos x dxcos x 1
π
+∫33.
6
20
cos x dx6 5sin x sin x
π
− +∫34.
2
0
sin 2x dx1 cos x
π
+∫35.
36.
20082
2008 20080
sin x dxsin x cos x
π
+∫37.
2
0
sin x dxcos x sin x
π
+∫38.
34
4
sin 2x dx
π
π∫39.
2
01 sin xd
π+∫40. x
2
0
cos x dxcos x 1
π
+∫41.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
42. 0
1 sin xdπ
−∫ x
43.
01 cos2xd
π+∫ x
44. 2
in xdπ
+∫0
1 s x
45. 2
0
x sin x1 cos
π
+∫ dxx
46. 3
2
6
tg x
π
π∫ 2cot g x 2dx+ −
47. e
1
sin(lnx∫
x)dx
48. 2
4 4cos2x(sin x cos x)
π
+∫0
dx
49. 33 sin x dxx 3)
π
+20 (sin∫
50. 3cos x dx
3cos x 3
π2
4 20 cos − +∫
51. 4
2t gx 1( ) dx1
π
−∫0 tgx +
52. 2 sin x dx
3
π
20 cos x +∫
53. 2
3 3(cos x sin x)dx
π
+0∫
54. 2
2
0sin x cos x(1 cos x) dx
π
+∫
55. 2
2 3
0sin 2x(1 sin x) dx
π
+∫
56. 3
2
6
1 dxcos x.sin x
π
π∫
57. 2
0
sin3x dxcos x 1
π
+∫
58. 4
30
1 dxcos x
π
∫
59. / 3 2
6/ 4
sin x dxcos x
π
π∫
60. 2
40
sin 2x dx1 sin x
π
+∫
61. 3
0sin x.tgxdx
π
∫
62. 2 sin 2x.cos x dx
1 cos x
π
+0∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
3
4
cos x sin x dx3 sin 2x
π
π
++
∫2
2 20
sin 2cos 4sin
xdxx x
π
+∫63.
64. 2
0
sin x cos x cos x dxsin x 2
π
++∫
65. 3
20
cos x dx1 sin x
π
−∫
66. 36
0
sin x sin x dxcos 2x
π
+∫
67. 4 44
0
sin x cos x dxsin x cos x 1
π
−+ +∫
68. 2
0
sin 2x sin x dx1 3cos x
π
++
∫
69.
3
30
sin1 cos
xx
π
+∫
70. 2
0
cos x dx2 cos2x
π
+∫
71. ( )2
0
cos sinx x dx
π
−∫
72. 2
3
1 dxsin x 1 cos x
π
π +∫
73.
2
0
cos x dxcos 2x 7
π
+∫74.
6
0
cos1 2sin
x dxx
π
+∫75.
4
20 2 cos
dx dxx
π
−∫76.
2
0
sin x dx1 sin x
π
+∫77.
2
0
cos x dxcos x 1
π
+∫78.
2
0
1 dx2 cos x
π
−∫79.
4
0
1 dx2 tgx
π
+∫
( )
80.
4
20 sin 2cos
dxx x
π
+∫81.
/ 2
30
4sin x dx(sin x cosx)
π
+∫82.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
83. / 2
0
3sin3sin
π
∫ 2 2x 4cos x dxx 4cos x+
+
84. 2
0 2 c−cos x dx
os x
π
∫
85. 33 sin x dx
π
0 cos x∫
86. 2
sin x dxπ
0 x∫
87. 3
4
6
1sin xπ∫ dx
cos x
π
88. 2
3cos x cos x cos xdx
π
−∫2π
−
89. 24
0
1 2sin1 sin 2x−+∫
x dx
π
90. 52
0 cossin x dx
x 1
π
+∫
91. / 4
21 sin 2x dx
s x
π +
0 co∫
92. 3
2cos 2x dx
1 cos 2x
π
π −∫6
93. 4
20
sin 4x dx1 cos x+∫
94. 4 / 3 dx
xsin2
π
π∫
95. 2
3
sincos 2 cos
xdxx x
π
π −∫
96. 3
2
4
tgx dxcos x 1 cos x
π
π +∫
97. / 3
2 2
/ 6tg x cot g x 2dx
π
π+ −∫
98. / 3
/ 6
dxsin xsin(x / 6)
π
π + π∫
99. 3
4
1 dxsin 2x
π
π∫
100. 2
0
xsin x dx9 4cos x
π
+∫
101. 2
0
sin 2x sin x dxcos3x 1
π
++
∫
102. 2
6
1 sin 2x cos 2x dxcos x sin x
π
π
+ ++∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) / 4
0
sin x.cosxdx
sin2x cos2x
π
+∫4
6 60
sin 4sin cos
xdxx x
π
+∫103.
104. 4
2 20
sin 2x dxsin x 2cos x
π
+∫
105. /2 3
20
sin xdx1 cos x
π
+∫
106. 2
40
sin 2x dx1 cos x
π
+∫
107. 1/ 2
0
dx1 cos+∫ x
108. 4
0
1 dxcos x
π
∫
109. 2
0
cos x dxsin x cos x 1
π
+ +∫
110. / 4
0
cos x 2sin x dx4cos x 3sin x
π ++∫
111. / 2
30
5cosx 4sin xdx
(cosx sin x)
π −+∫
112. 2
0
4cos x 3sin x 1 dx4sin x 3cos x 5
π
− ++ +∫
113. /2
0
sin x 7cos x 6 dx4sin x 3cos x 5
π + ++ +∫
114. 2
0
1 dx2cos x sin x 3
π
+ +∫
115.
/2
2 2 2 20
sin xcos x dxa cos x b sin x
π
+∫
( )
116.
/ 4
30
cos2xdx
sin x cosx 2
π
+ +∫117.
32
0
sin x tgx dx
π
∫118.
/4
40
dxcos x
π
∫119.
/ 4 3
40
4sin x dx1 cos x
π
+∫120.
/ 2
0
dxsin x cos x
π
+∫
3
0sin x cos3xdx
121.
π
∫122.
/4
0
dx1 tg
π
+∫123. x
/2
20
sin xdx dxcos x 3
π
+∫ 124.
/2
30
sin xdx(s 3 cos x)
π
+∫
inx125.
/6
0
dx(s 3 cos x)
π
+∫
inx126.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
127. /2
0 (s
π
∫inx 3
sin xdxcos x)+
128. /2
37sin x 5cos x dx
cos x)
π −+
∫ x0 (s in
129. /2
33sin x 2cos x dx
cos x)
π −
+∫
inx0 (s
130. /2 4
3 3cos xs dx
os x
π
+∫
inx
in x0 s c
131. /2
/4
sin x cos x dx1 sin 2x
π
π
−+∫
132. /2
2/6
cos x dxs 3 c x
π
π +∫
inx os
133.
134. /6 3
0
tan x dxcos2x
π
∫
V. Tích phân từng phần:
1. e
2ln x dx
1)∫1e
(x +
2. 2 ln x
51
dxx∫
3. 2 ln x dx21 x∫
4. 4
1
ln xx∫
5. 8 ln
13
xx +∫
6. 3 2
e
dx
2ln(1 x)dx+∫
1
lnx x∫
7.
1
8. ( )
4
30
ln 2 1
2 1
x dxx
+
+∫
( )2
1
2 ln
9. x xdx−∫
10. 2
2
1
1x ln(1 )dxx
+∫2
2
1(x x) ln x dx+∫
11.
12. 2e
1
x x ln x 1dxx
+ +∫
13.
1e
2
1ln x dx∫
22
1x ln xdx∫
42
1(x 1) ln x dx−∫
32
1
ln(3 )
14.
15.
16. x x dx+∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) 2
21
ln(x 1) dxx+
∫ 17.
18. 2 2
31
ln(x 1) dxx+
∫
e
1x(2 ln x)dx−∫
e
1(1 x) ln x dx+∫
e2
1x ln x dx∫
22
1(x ln x) dx∫
( )1
2
0
ln 1
19.
20.
21.
22.
23. x x d+∫ x
24. 3
21
1 ln( 1)x dxx
+ +∫5
2
2
ln( 1)
25. x x dx−∫
26.
12
0
1 xx.ln dx1 x+−∫
27.
2e
2e
1 1( )dxln xln x
−∫
28. 0
2x 3
1x(e x 1)dx
−+ +∫
2e
1
x 1.ln xdxx+
∫
e2
1(ln x) dx∫
29.
30.
42
1ln( x 9 x)dx+ −∫
32
2ln(x x)dx−∫
31.
32.
2e
1
ln x dxln x∫
102
1
lg
33.
x xdx∫3
2
0x ln(x 1)dx+∫
22
1x ln(x 1)dx+∫
34.
35.
36.
31
lne xdxx∫37.
2 x1
20
x e dx(x 2)+∫38.
( )( )
21
20
1
1
xx edx
x
+
+∫21
3 x
0x e dx∫
22
1
( 1) x
39.
40.
x e dx+∫41.
x22
0x.e dx
−∫42.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
43. 1
0
( 1) xx e dx−+∫
44.
13
0
xx e dx∫
45.
46. ( )1
0
2 2xx e dx−∫
47. 1
x
2x 2e sin xdxπ
∫1
2 2x(1 x) .e dx+∫
3x 1
0e d+∫
48.
0
49.
0
50. 1
x
0
xe d∫ x
51. 4
xe dx∫1
52. ln8
x 2x.e d+∫ln3
e 1 x
53. 4
3x
0e sin 4x d
π
∫ x
54. 2
sin x
0e sin 2
π
∫ x dx
55. 21
20
x ln(x 1 x ) dx1 x
+ +
+∫
56. 2sin x.ln(1 cos x)dx
π
+∫
( )
0
57. 2
0
1 sin 2x xdx
π
+∫
58. 3
0sin x.ln(cos x)dx
π
∫
59. 4
2
0x.tg x dx
π
∫
0x sin xdx
π
∫
60.
61. 3
2
3
sincos
x xdxx
π
π−
∫
2
0x cos x sin x dx
π
∫
62.
63.
2
4
0sin xdx
π
∫
64. 1
0cos x dx∫
2 2
0x cos xdx
π
∫
( )
65.
66. 2
2
0
2 1 cosx xdx
π
−∫
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội)
67.
2
4
0x sin xdx
π
∫
68.
2
4
0x cos xdx
π
∫
69.
3
23
0
sin xdx
π⎛ ⎞⎜ ⎟⎝ ⎠
∫
70.
2
9
0
sin xdx
π
∫
71. 4
0
.1 cos 2
x dxx
π
+∫
72. 2
2
4
xdxsin x
π
π∫
/ 22
0x cos xdx
π
∫
73.
/ 3
20
x sin x dxcos x
π +∫/ 2
2
0(x 1)sin xdx
π+∫
12
0
x .sinxd∫
3
0xsin xdx
π
∫
/ 2
0cos x ln(1 cos x)dx
π+∫
74.
75.
76. x
77.
78.
2x
0
1 sin x e dx1 cos x
π
++∫79.
3
2
6
ln(sin x) dxcos x
π
π∫
( )
80.
3
4
lnsin 2
tgxdx
x
π
π∫81.
6
20 cos
xdxx
π
∫82.
2
3/4
cossin
x xdxx
π
π∫
0
os(ln )e
c x dxπ
∫
83.
84.
4
20
cos 2(1 sin 2 )
x x dxx
π
+∫85.
4
0
(1 sin 2 )x x dx
π
+∫86.
By Th.S Nguyen Van Hong: 0979. 979. 489(Mê Linh – Hà Nội) VI. Lớp tích phân đặc biệt:
1. 1 4
1 2 1x
x dx
− +∫
2. ( )2 5
2 12
ln x x dx+ +−
⎡ ⎤⎢ ⎥⎣ ⎦∫
312ln( 1 )3.
1
x x d−
⎡ ⎤+ +⎣ ⎦∫ x
2
3 42
sin4 5
xdxx− +
∫4.
5. ( )2
2 1
2
cos .lnx x x d x
π
π−
+ +∫
6. ( ) ( )
cot
2 21 1
1 01 1
tga gxxdx dx tgx x x
+ =+ +∫ ∫
e e
a >
1 4
21
sin1
x x dxx−
++∫7.
8. 1 2
1
11 2x
x dx−
−+∫
9. 6 64
4
sin cos6 1x
x x dx
π
π−
++∫
10. / 2
2/ 2
x cos x4 sin
π
−π
+−
∫ dxx
11. 2/2
xin x
dxπ π
/2
x s1 2−π +
∫
1 21 x dx−∫ 12.
x1 1 2− +
1
x 21
dx(a 1)(x 1)− + +
∫ 13.