TPbai tap nguyen ham tich phan - Pdf 62

III. TÍCH PHÂN HÀM HỮU TỶ:
1.

+−

5
3
2
23
12
dx
xx
x
2.

++
b
a
dx
bxax ))((
1
3.

+
++
1
0
3
1
1
dx

0
22
)3()2(
1
dx
xx
7.

+

2
1
2008
2008
)1(
1
dx
xx
x
8.


+−
++−
0
1
2
23
23
9962

++

2
1
24
2
)23(
3
dx
xxx
x
12.

+
2
1
4
)1(
1
dx
xx
13.

+
2
0
2
4
1
dx

x
17.

+−
4
2
23
2
1
dx
xxx
18.

+−
++
3
2
3
2
23
333
dx
xx
xx
19.

+

2
1

22.

+

1
0
2
4
1
2
dx
x
x
23.

+
+
1
0
6
4
1
1
dx
x
x
24.
1
4 11
2

dx
x
x








+

1
0
3
1
22
28.








+−



x
xx

+
++
1
0
2
3
32

31.
dxx
x
xx










+−

++
0
1

1
0
2
34xx
dx

IV. TÍCH PHÂN HÀM LƯỢNG GIÁC:
1.
xdxx
4
2
0
2
cossin

π
2.

2
0
32
cossin
π
xdxx
3.
dxxx

2
0
54


2
3
sin
1
π
π
dx
x
8.

−+
2
0
441010
)sincoscos(sin
π
dxxxxx
9.


2
0
cos2
π
x
dx
10.

+

13.

−+
4
0
22
coscossin2sin
π
xxxx
dx
14.

+
2
0
cos1
cos
π
dx
x
x
15.


2
0
cos2
cos
π
dx

1cossin
1
π
dx
xx
19.


2
3
2
)cos1(
cos
π
π
x
xdx
20.


++
+−
2
2
3cos2sin
1cossin
π
π
dx
xx

1
1
π
dx
tgx
25.

+
4
0
)
4
cos(cos
π
π
xx
dx
26.

++
++
2
0
5cos5sin4
6cos7sin
π
dx
xx
xx
27.

+
++
2
0
cossin
2sin2cos1
π
dx
xx
xx
31.

+
2
0
cos1
3sin
π
dx
x
x
32.


2
4
sin2sin
π
π
xx

3
4
3
3
3
sin
sinsin
π
π
dx
xtgx
xx
37.

++
2
0
cossin1
π
xx
dx
38.

+
2
0
1sin2
π
x
dx


6
6
4
cossin
π
π
xx
dx
43.

+
3
6
)
6
sin(sin
π
π
π
xx
dx
4.

+
3
4
)
4
cos(sin

+
3
0
3
)cos(sin
sin4
π
xx
xdx
48.


+
0
2
2
)sin2(
2sin
π
x
x
49.

2
0
3
sin
π
dxx
50.

53.

+
4
6
2cot
4sin3sin
π
π
dx
xgtgx
xx
54.

+−
2
0
2
6sin5sin
2sin
π
xx
xdx
55.

2
1
)cos(ln dxx
56.


π
xdxxtg
60.

π
0
22
sin xdxe
x
61.

2
0
3sin
cossin
2
π
xdxxe
x
62.

+
4
0
)1ln(
π
dxtgx
63.

+

2
4 4
cos (sin cos )
0
π
+

x x x dx
67.
3
2
4sin
0
1 cos
π

+
x
dx
x
68.


2
2
3cos.5cos
π
π
xdxx



b
a
dxxfxR ))(,(
Trong ®ã R(x, f(x)) cã c¸c d¹ng:
+) R(x,
xa
xa
+

) §Æt x = a cos2t, t
]
2
;0[
π

+) R(x,
22
xa

) §Æt x =
ta sin
hoÆc x =
ta cos
+) R(x,
n
dcx
bax
+
+

xa
+
) §Æt x =
tgta
, t
]
2
;
2
[
ππ
−∈
+) R(x,
22
ax

) §Æt x =
x
a
cos
, t
}
2
{\];0[
π
π

+) R
( )
1 2 i



+++
2
1
2
1
2
5124)32( xxx
dx
4.

+
2
1
3
1xx
dx
5.

+
2
1
2
2008dxx
6.

+
2
1

10.


+
2
2
0
1
1
dx
x
x
11.

+
1
0
32
)1( x
dx
12.


2
2
0
32
)1( x
dx
13.

0
2
coscossin
π
dxxxx
17.

+
2
0
2
cos2
cos
π
x
xdx
18.

+
+
2
0
cos31
sin2sin
π
dx
x
xx
19.


dxx
23.

++
7
2
112x
dx
24.
dxxx

+
1
0
815
31

25.


2
0
56 3
cossincos1
π
xdxxx
26.

+
3ln

5
2
8412 dxxx
30.

+
e
dx
x
xx
1
lnln31
31.

+
+
3
0
2
35
1
dx
x
xx
32.
dxxxx

+−
4
0


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