200 bài tập tích phân - Pdf 39

NguyÔn Hïng Cêng Gi¸o viªn THPT Phï Lu
1.
2
1
x x
0
(2x 1)e dx



(§H Dîc_81 )
2. Víi
x 0;
4
π
 

 
 
x¸c ®Þnh a,b sao cho
1 a cos x bcos x
cos x 1 sin x 1 sin x
= +
− +

3. TÝnh
/ 4
3
0
dx dx
I J

3
0
xdx
(x 1)+

(Bé §Ò)
7.
1
2
4
0
x 1
dx
x 1

+

(Bé §Ò)
8.
2x 2
0
e sin xdx
π

(Bé §Ò)
9.
/ 2
0
cos xdx
2 cos2x

+

(Bé §Ò)
13.
a
2 2
0
x a dx+

(Bé §Ò)
14.
2
0
1 sin xdx
π
+

(Bé §Ò)
15.
3 /8
2 2
/8
dx
sin x cos x
π
π

(Bé §Ò)
NguyÔn Hïng Cêng Gi¸o viªn THPT Phï Lu
16.

2
2 / 3
dx
x x 1−

(BK_95)
21.
0
cos x sin xdx
π

(BK_98)
22. Cho hµm sè:
f(x) sin x.sin2x.cos5x=
a. T×m hä nguyªn hµm cña g(x).
b. TÝnh tÝch ph©n:
2
x
2
f(x)
I dx
e 1
π
−π
=
+

(BK_99)
23.
ln 2

26.
1
3
0
3dx
1 x+

(XD_00)
27.
1
4 2
0
dx
x 4x 3+ +

(§H Má_95)
28.
/ 3
2 2
/ 6
tg x cot g x 2dx
π
π
+ −

(§H Má_00)
NguyÔn Hïng Cêng Gi¸o viªn THPT Phï Lu
29.
/ 3
/ 6

(§H Hµng H¶i_00)
32.
/ 2
3
sin xdx
sin x cos x
π
+

(§H GT VT_95)
33.
3
5 2
0
x . 1 x dx+

(§H GT VT_96A)
34.
1/ 9
3x
2 5
0
x 1
5 dx
4x 1
sin (2x 1)
 
+ +
 ÷



= +

∫ ∫
(§H GT VT_99)
37.
/ 2
2
/ 2
x cos x
dx
4 sin x
π
−π
+


(§H GT VT_00)
38.
/ 2
3
0
5cosx 4sin x
dx
(cosx sin x)
π

+

(§H GT VT_01)

dx
x x 1


+
+

(HV BCVT_97)
42.
/ 2
3
2
0
sin x cos x
dx
1 cos x
π
+

(HV BCVT_98)
NguyÔn Hïng Cêng Gi¸o viªn THPT Phï Lu
43.
1
4
x
1
x
dx
1 2


0
x sin x
dx
cos x
π
+


1
3
2
0
x
dx
x x 1+ +

(HV NH HCM_00)

1 4
2
2
0 0
sin 4x
x ln(x 1)dx dx
1 cos x
+
+
∫ ∫
47.
2

+ +

(§H NTh¬ng_00A)
50.
1
3 2
2
0
x 2x 10x 1
dx
x 2x 9
+ + +
+ +

(§H NTh¬ng_00)
1
2
2
0
x 3x 10
dx
x 2x 9
+ +
+ +

51.
/ 4
6 6
0
sin 4x

0
dx
I dx
cos x x 1
1
5
0
x
J=
π
=
+
∫ ∫
(§H TM_95)
55.
1
0
x 1 xdx−

(§H TM_96)
56.
7 ln 2
9 x
x
3
2
0 0
x 1 e
I dx dx
1 e

(sin x cos x)
π
+

(§H TM_00)
60.
11
0
sin xdx
π

(HV QHQT_96)
61.
/ 4
2 4
0
sin x cos xdx
π

(§H NN_96)
62.
e
2
1/ 2
ln x
dx
(1 x)+

(§H NN_97)
63.

π

(§H Thuû Lîi_96)
67.
0
1 cos2xdx
π
+

(§H Thuû Lîi_97)
68.
3 2
2
4 2 5
1 1
x 1 dx
I dx
x x 1 x(x 1)
J=
+
=
+ + +
∫ ∫
(§H Thuû Lîi_99)
Nguyễn Hùng Cờng Giáo viên THPT Phù Lu
69.
( )
/ 4
0
ln 1 tgx dx

(ĐH Văn Hóa_01D)
72.
/ 2
2 2 2 2
0
sin x cos x
dx a,b 0
a cos x b sin x
;


+

(HV TCKT_95)
73.
2 / 2
2
2
0
x
dx
1 x

(HV TCKT_97)
74.
/ 4
2
0
x(2cos x 1)dx



+ +
+ +

76.
1
4 2
0
x
dx
x x 1+ +

(HV TCKT_00)
77.
/ 2
2
0
(x 1)sin xdx

+

(ĐH Mở_97)
78.
/ 2
3
0
4sin x
dx
1 cos x


4
2
/ 4 1
x
tg xdx dx
x 7x 12



+

(ĐH Y HN_00)


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