导数公式:基本积分表:
三角函数的有理式积分:(一)含有ax b 的积分(0a
)1.
dx ax b =1
ln ax b
C
a
a
x x a
a a ctgx x x tgx x x x ctgx x tgx a x
x
ln 1)
(log ln )
(csc )(csc sec )(sec csc )(sec )(2
2
2
2
2
2
1
1)
(11)(11)(arccos 11)(arcsin x
arcctgx x arctgx x x x
x C
a x
x a
x
dx C
shx chxdx
C chx shxdx C
a
a
dx
a C
x ctgxdx
x C x dx tgx x C
ctgx
xdx
x
dx C tgx xdx x dx x
x
)
ln(ln csc csc sec sec csc sin sec cos 2
2
2
2
2
22
2
C a x x
a
dx C x
a x a a x a dx C
a
x a
x a a
x
dx C
a x
arctg a x a dx C ctgx x xdx C
tgx
x xdx C
x
ctgxdx C x tgxdx arcsin ln 21ln
21
1
csc ln csc sec ln sec sin ln cos ln 2
2222
2
2
2
C
a
x a
x
a
x dx
x a
C
a x x a a x x dx a x C a x x a a x x dx a x I n n xdx xdx
I n
n
n
n
arcsin
2
2
ln 2
2)ln(2
21cos sin 2
2
2
222
2
2
2
22
22
2
2
2
2
2
2
2
2
20
2.
()d ax b x
=
1
1()
(
1)
ax b C a (
1)
3.
d x x ax b =21
(ln )ax b b ax b C a
4.
2
d x x ax
b =
2
2
3
11()
2()ln 2ax b b ax b b ax
b C
a
5.
d ()
x
x ax
b =
1ln
ax b
C
b
x 6.
2
d ()
x x ax
b =
2
1ln
a ax b
C
bx b
x 7.
2
d ()
x x
ax
b =
2
1(ln )b ax
b
C
a
ax
b
8.
2
2
d ()x x
ax
b =
2
3
1(2ln )b ax b b ax b
C
a
ax b
9.
2
d ()x
x ax
b =
2
11ln
()
ax b
C
b ax
b b
x
(二)含有ax
b
的积分
10.
d ax b x =3
2()3ax b C
a 11.
d x ax b x =3
22(32)()15ax
b ax b C a 12.
2d x ax b x =2223
32(15128)()105a x abx b ax b C
a
13.
d x x ax b
=
2
2(2)3ax b ax b C
a
14.
2
d x x ax
b
=
22
2
3
2(348)15a x
abx b ax b
C
a 15.
dx x ax
b
=
1
ln
(0)2
arctan
(0)
ax b b C b b ax b
b
ax b
C
b
b b
16.
2
dx x
ax b
=
d 2ax b a x bx
b x ax b
17.
d ax b
x x =d 2x ax
b
b
x ax
b
18.
2
d ax b
x x
=
d 2ax b a x x
x ax b
(三)含有
2
2
x
a
的积分
19.
2
2
dx x
a
=
1arctan x C
a a
20.
2
2d ()
n
x
x a =
2
2
21
2
2
21
23
d 2(1)()
2(1)()
n n x
n
三角函数查询表x n a x a n a x
a 21.
2
2
dx x
a =
1
ln 2x a C
a
x
a
(四)含有
2
(0)ax
b a 的积分
22.
2
dx ax
b
=
1
arctan (0)1ln
(0)
2
a
x C
b b ab ax b C
b
ab ax b 23.
2d x x ax
b
=2
1ln 2ax b
C
a
24.
2
2
d x x ax
b =
2
d x b x a a ax
b 25.
2
d ()
x
x ax
b =
2
2
1ln
2x C
b ax
b
26.
2
2
d ()
x x ax
b =
2
1d a x bx
b
ax
b
27.
3
2
d ()
x x ax
b =
2
2
2
2
1ln
22ax b
a C
b
x
bx
28.
2
2
d ()
x ax
b =
2
2
1d 2()
2x
x b ax
b b
ax
b
(五)含有
2
ax
bx c (0)a 的积分29.
2
dx ax
bx
c
=
2
2
222
2
2
2
2arctan (4)
44124ln (4)
424ax b C b ac ac
b
ac b ax b b ac C b
ac b
ac
ax
b
b
ac
30.
2
d x x ax
bx c =
2
2
1d ln 22b x ax
bx c
a
a ax
bx
c
(六)含有
2
2
x
a (0)a
的积分31.
2
2
dx x
a
=
1arsh x C a
=2
2
ln()
x x
a C
32.
2
23
d ()
x x
a =
2
2
2
x
C
a
x
a
33.
2
2
d x x x
a
=
2
2
x a C
34.
2
23
d ()
x x
x
a =
2
2
1C
x
a
35.
2
2
2
d x x
x
a
=
2
2
2
2
2
ln()
2
2
x a
x
a
x x
a C
36.
2
2
23
d ()
x
x
x
a =
2
2
2
2
ln()
x x x
a C
x
a 37.
2
2
dx x x
a
=
2
2
1ln
x
a a
C
a
x
38.
2
2
2
dx x
x
a
=
22
2
x
a
C
a x 39.
2
2
d x a x
=
2
2
2
2
2
ln()
2
2
x a
x a
x
x
a C
40.
2
23
()d x a x
=
22
2
2
4
2
2
3(25)ln()
8
8
x x a x a
a x x
a C
41.
2
2
d x x
a x =223
1()
3
x a C
42.
2
2
2
d x
x
a
x =
4
2
22
2
2
2
(2)ln()
88
x a
x
a x
a
x x
a C
43.
2
2
d x a x x
=2
2
2
2
ln
x a a
x
a
a C
x
44.
2
2
2
d x
a
x x
=
2
2
2
2
ln()
x
a x x
a C
x
(七)含有
2
2
x
a (0)a
的积分
45.
2
2
dx
x
a
=
1arch x x
C x a
=2
2
ln x
x
a
C
46.
2
23
d ()
x x
a =
2
2
2
x
C
a
x
a
47.
2
2
d x x x
a
=
2
2
x
a
C
48.
2
23
d ()
x x x
a =
2
2
1C
x a
49.
2
2
2
d x x x
a
=
2
2
2
2
2
ln 2
2
x a
x
a
x x
a
C
50.
2
2
23
d ()
x
x
x
a =
2
2
2
2
ln x x x
a
C
x
a
51.
2
2
dx x x
a
=
1arccos
a C
a
x
52.
2
2
2
dx x
x
a
=
22
2
x
a
C
a x 53.
2
2
d x a
x =
2
2
2
2
2
ln 2
2
x a
x a
x
x
a
C
54.
2
23
()
d x a x =
2
2
2
2
4
2
2
3(25)ln 8
8
x
x a x a
a x
x
a
C
55.
2
2d x x
a x =223
1()
3
x a C
56.
2
2
2
d x
x
a
x =
4
2
2
2
2
2
2
(2)ln 8
8
x a
x
a x
a
x x
a
C
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