考研数学必备积分表【附录】

  • 格式:pdf
  • 大小:210.97 KB
  • 文档页数:6

a
a
x
2(n 1)a2 a2 x2 n1
2n 3 2(n 1)a2
2 1 . x
a2 x2 dx 1
3
a2 x2 2 C
3
dx
a2 x2
22. x2 a2 x2 dx x 2x2 a2
n1
(n
1)
23.
dx
8 arcsin x C
a2 x2
a
a 2 x 2 a 4 arcsin x C
0(m n)
91. cos mx cos nxdx (m n)
0(m n)
92. sin mx sin nxdx (m n)
0(m n)
93. sin mx sin nxdx
cos
mx
cos
nxdx
0
0
2 (m n)
94. 2 cosn xdx 0
2 0
C
83. eax cos bxdx eax a cos bx b sin bx C
a2 b2
84. arcsin xdx x arccos x a2 x2 C
a
a
85. arccos xdx x arccos x a2 x2 C
a
a
86.
arctan
x dx
x
arctan
5 1 .
dx
1 ln
|x|
C
x x2 a2 a a x2 a2
x2 a2 | C
5 2 .
dx
1 arccos a C
x x2 a2 a
x
A.6 含有a bx cx2 的积分
57.
sin
axdx
1 a
cos
ax
C
53.
dx a bx cx2
2 arctan 2cx b C(b2 4ac) 58.
n 1
n 1
75. cscn xdx 1 cot xcscn2 x n 2 cscn2 xdx(n 1)
n 1
n 1
76. sinm xcosn xdx sinm1 xcosn1 x n 1 sinm xcosn2 xdx
mn
mn
sinm1 xcosn1 x m1 sinm2 xcosn xdx
csc
axdx
1 a
ln
|
csc
ax
cot
ax
|
C
65. sec x tan xdx sec x C
A.8 含有三角函数的积分
66. csc x cot xdx csc x C
67.
sin
ax
sin
bxdx
sin a b x 2a b cosa b x
sin a b 2a b cos a b
1
C
a2 x2
பைடு நூலகம்
A.4 含有 a2 x2 的积分
2 9 .
x 2d x
3
a 2 x 2 2
1
arcsin x C
a2 x2
a
3 0 .
dx
1 ln a a 2 x 2 C
x a2 x2 a
x
3 1 .
dx
x2 a2 x2
3 2 .
dx
x3 a2 x2
a2 x2 C a2x
mn
mn
77.
a
dx b cos
x
2
a2 b2 arctan
a a
b b
tan
x 2
C(a2
b2 )
1
bacos x ln
b2 a2 sin x C(a2 b2)
b2 a2
a bcos x
A.9 其他形式的积分
78. xneaxdx 1 xneax n xn e 1 axdx
1
a a bx
1 a2
ln
a bx x
C
16.
a x2
bx
dx
a
x
bx
b 2
x
dx a bx
A.3 含有a2 x2 的积分
2 0 . a 2 x 2 d x x a 2 x 2 a 2 a r c s in x C
2
2
a
17.
dx a2 x2
n
1 arc tan x C(n 1)
a
A.7 含有 a bx cx2 的积分
54.
dx a bx cx2
1 c
ln | 2cx
1
arcsin
b2 2cx
c b
a bx cx2 | C(c 0) C(b2 4ac,c 0)
c
b2 4ac
55. a bx cx2dx 2cx b a bx cx2 4ac b2
2a3
|x|
x3
dx
x2 a2
x2 a2 2a2x2
1 2a3
arccos a x
C
x 2 a 2 dx x 2 a 2 a ln a x 2 a 2 C
x
|x|
x 2 a 2 dx x 2 a 2 a arccos a C
x
x
5 0 .
x2 x2
a2
dx
x2 a 2 ln | x x
sin n
xdx
n
1 n
n n
3 2
4 5
2 3
(n是奇数)
n
1 n
n n
3 2
3 4
1 2
2
(n是偶数)
95.
2 0
sin 2 m1
x cosn
xdx
2462m
n 1n 3n
2m 1
96.
2 0
sin 2 m
x cos2n
xdx
1352n 11352m 2462m 2n
dx
4c
8c
a bx cx2
56.
xdx 1 a bx cx2 b
dx
a bx cx2 c
2c a bx cx2
61.
sin 2
axdx
x 2
1 4a
sin
2ax
C
62.
cos2
axdx
x 2
1 4a
sin
2ax
C
63.
sec
axdx
1 a
ln
|
sec
ax
tan
ax
|
C
64.
a2 x2 2a 2x 2
1 2a3
ln
a
a2 x2 C x
3 3 .
a2 x2 dx
a 2 x 2 a ln a
a2 x2 C
x
x
3 4 .
a2 x2
1
x2
dx x
a 2 x 2 arcsin x C a
A.5 含有 x2 a2 的积分
42.
dx
3
x2 a2 2
8
a
18
xdx (a2 x2 )n
1 2
ln
a2 x2 1
2(n 1) a2
C(n 1) x2 n1 C(n 1)
2 4 .
xdx a 2 x2 C
a2 x2
2 5 .
x 2dx x a 2 x 2 a 2 arcsin x C
a2 x2
2
2
简单积分表
A.2 含有 a bx 的积分
A.1 含有a+bx 的积分
3
23bx 2aa bx2
1.
a
bx dx
(a bx) 1 b( 1)
C (
1)
1
b
ln
|
a
bx
|
C(
1)
xdx x a 2. a bx b b2 ln | a bx | C
3.
x2dx a bx
4ac b2
4ac b2
1
ln
b2
4ac b 2cx
C(b2
59.
4ac)
b2 4ac b2 4ac b 2cx
60.
cos axdx 1 sin ax C a
tan axdx 1 ln | cos ax | C a
cot axdx 1 ln | sin ax | C
x2 a2 3a4 ln | x
48. x2 a2 | C
8
8
49
x2dx 3
x2 a2 2
x ln | x x2 a2
x2 a2 | C
dx
x2 x2 a2
x2 a2 a2x2
C
dx
x 2 a 2 1 ln a x 2 a 2 C
x3 x2 a2
2a2x2
a
a
79.
x
ln
xdx
x 1
12
1 ln
x
1
C(
1)
80. xn sin xdx xn cos x n xn1 cos xdx
81. xn cos xdx xn sin x n xn1 sin xdx
82.
eax
sin
bxdx
eax
a sin bx b
a2 b2
cos bx
x
x
C
(a
b)
70.sinn 71. cosn
xdx 1 sinn1 xcos x n1 sinn1 xdx
n
n
xdx 1 cosn1 sin x n1 cosn1 xdx
n
n
68. sin ax cos bxdx
2a b
2a b