Table of Integrals - Oregon State University
Table of Integrals
Basic Forms
Z
n
1 n+1
x dx =
x
n+1 Z
1
||
dx = ln x
x
Z
Z
udv = uv vdu Z
Zp
2
2
2 2p
x ax + bdx = 2 ( 2b + abx + 3a x ) ax + b (26)
15a
(1)
(2)
Zp
h
p
1
x(ax + b)dx = 3/2 (2ax + b) ax(ax + b)
(3)
4a
2
p
p
i
b ln a x + a(ax + b)
(27)
1
1|
|
dx = ln ax + b
(4)
ax + b a
Integrals of Rational Functions
Z
1
1
2 dx =
(5)
(x + a)
x+a
Z
n+1
n
(x + a)
6
(x + a) dx =
,n = 1
(6)
n+1
Z
n+1
n (x + a) ((n + 1)x a)
x(x + a) dx =
(7)
(n + 1)(n + 2)
Z
1
1
2 dx = tan x
(8)
1+x
Z
1
1
1x
2 2 dx = tan
(9)
a +x
a
a
Z
x
2
2 dx
=
1
|2 ln a
2| +x
(10)
a +x
2
Z
2
x
1x
2 2 dx = x a tan
(11)
a +x
a
Z
3
x
12
2 2 dx = x
1 2 | 2 2| a ln a + x
(12)
a +x
22
Z
1
2
p2
1 p2ax + b
dx =
2 tan
2 (13)
ax + bx + c
4ac b
4ac b
Z
1
1 a+x 6
dx =
ln
, a = b (14)
(x + a)(x + b) b a b + x
Z
Zp 3
2
p
b
b
x
3
x (ax + b)dx =
2+
x (ax + b)
12a 8a x 3
3
pp
b
+ 5/2 ln a x + a(ax + b) (28) 8a
Zp
p
p
2? 2
1
2? 2?1 2
2? 2
x a dx = x x a a ln x + x a
2
2
(29)
Zp 2 a
p
2
1
2
x dx = x a
2
2 12
1p x
x + a tan
2
2
2
ax
(30)
Zp 2? 2
1 2 ? 2 3/2
x x a dx = x a
3
(31)
Z
p
p1
2? 2
2 ? 2 dx = ln x + x a
(32)
xa
Z
p1
1x
2 2 dx = sin
(33)
ax
a
Z
p
px
2? 2
2 ? 2 dx = x a
(34)
xa
Z
p
px 2 2 dx =
2
2
ax
(35)
ax
x 2 dx =
a
|| + ln a + x
(x + a)
a+x
Z
x
2
1 |2
|
dx = ln ax + bx + c
ax + bx + c 2a
(15)
Z
2
p
p
px
1
2? 21 2
2? 2
2
x
? 2 dx a
=
x 2
x
a
a ln x + x 2
a
(36)
pb
1 p2ax + b
2 tan
2 (16)
a 4ac b
4ac b
Integrals with Roots
Zp
p
2
b + 2ax 2
ax + bx + cdx =
ax + bx + c
Zp
2
3/2
x adx = (x a)
4a
2
p
4ac b
2
+
+ 3 2 ln 2ax + b + 2 a(ax + bx c) (37) / 8a
(17)
Zp xx
3
Z
p
p1
?
? dx = 2 x a
xa
Z
p
p1
dx = 2 a x
ax
2
32 /
2
52 /
adx = a(x a) + (x a)
(18) Z p
pp
2
1
2
x ax + bx + c = 5 2 2 a ax + bx + c /
48a
(19)
2
2
3b + 2abx + 8a(c + ax )
3
pp 2
+3(b 4abc) ln b + 2ax + 2 a ax + bx + c (38)
(20)
3
5
Zp
p
2b 2x
ax + bdx = +
ax + b
3a 3 Z
Z
p
(21) p 1
p1
2
2
dx = ln 2ax + b + 2 a(ax + bx + c)
ax + bx + c
a
3/2
2
5/2
(39)
(ax + b) dx = (ax + b)
(22)
5a
Z
p
px
2
?
x
?
dx a
=
(x 3
2a) x
a
Zr
p
x
p 1 x(a
dx = x(a x) a tan
(23)
x) (24)
Z
p
px 2
1
2
dx = ax + bx + c
ax + bx + c a
p
b
2
3/2 ln 2ax + b + 2 a(ax + bx + c)
(40)
2a
ax
xa
Zr
p
x
p p
dx = x(a + x) a ln x + x + a (25)
a+x
Z
dx 2 232=
/
px
22
2
(a + x )
a a +x
(41)
Integrals with Logarithms
Z
ln axdx = x ln ax x
(42)
Z
ln ax 1
2
dx = (ln ax)
(43)
x
2
Z
b ln(ax + b)dx = x +
ln(ax + b)
x, a 6= 0
(44)
a
Z
2
2
2
2
1x
ln(x + a ) dx = x ln(x + a ) + 2a tan
2x (45)
a
Z
2
2
2
2
x+a
ln(x a ) dx = x ln(x a ) + a ln
2x (46)
xa
Z
p
2
1
ln ax + bx + c dx = 4ac
a
2
1 p2ax + b
b tan
2
4ac b
b
2
2x + + x ln ax + bx + c
(47)
2a
Z
bx 1 2
x ln(ax + b)dx =
x
2a 4 2 1 2b
+ x 2 ln(ax + b) (48)
2
a
Z
2
x ln a
22
12
b x dx = x +
2 2
1 2a
2
x 2 ln a
2
b
22
bx
(49)
Integrals with Exponentials
Z
ax
1 ax
e dx = e
a
(50)
Zp
p
p
p
ax
1 ax i
xe dx = xe + 3/2 erf i ax ,
a
2a Z
x
2
p2
t
where erf(x) =
e dt (51)
0
Z
x
x
xe dx = (x 1)e
(52)
Z
ax
x
xe dx =
a Z
1 ax
2e a
(53)
2x
2
x
x e dx = x 2x + 2 e
(54)
Z
2 ax
2 x
x e dx =
a Z
2x 2 ax 2+ 3 e
aa
3x
3
2
x
x e dx = x 3x + 6x 6 e
(55) (56)
Z
n ax
n ax
xe
x e dx =
a
Z
n
n 1 ax
x e dx
a
(57)
Z
n
n ax
( 1)
x e dx = +1 [1 + n, ax],
n
a Z1
(58)
a1 t
where (a, x) = t e dt
x
Z 2
p
p
ax
i p
e dx =
erf ix a
(59)
2a
Z
p
2
p
ax
p
e dx = erf x a
(60)
2a
Z
2
2
ax
1 ax
xe dx = e
(61)
2a
Z
2
2
ax
r p
1
x e dx =
3 erf(x a)
4a
2
x ax e
2a
(62)
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Integrals with Trigonometric Functions
Z
1
sin axdx = cos ax
(63)
a Z
2
x sin 2ax
sin axdx =
(64)
2 4a
Z
n
sin axdx =
1
11 n3 2
cos ax 2F1 ,
, , cos ax
(65)
a
222
Z
3
3 cos ax cos 3ax
sin axdx =
+
(66)
4a
12a
Z
1
cos axdx = sin ax
(67)
a Z
2
x sin 2ax
cos axdx = +
(68)
2 4a
Z
p
cos axdx =
1
1+p
cos ax
a(1 + p)
1+p 1 3+p 2
2 F1
, , , cos ax (69)
222
Z
3
3 sin ax sin 3ax
cos axdx =
+
(70)
4a
12a
Z
3
1
1|
|
sec x dx = sec x tan x + ln sec x + tan x (84)
2
2
Z
sec x tan xdx = sec x
(85)
Z
2
12
sec x tan xdx = sec x
(86)
2 Z
n
1n 6
sec x tan xdx = sec x, n = 0
(87)
n
Z
x
|
|
csc xdx = ln tan = ln csc x cot x + C (88)
2
Z
2
1
csc axdx = cot ax
(89)
a
Z
3
1
1|
|
csc xdx = cot x csc x + ln csc x cot x (90)
2
2
Z
n
1n 6
csc x cot xdx = csc x, n = 0
(91)
n Z
||
sec x csc xdx = ln tan x
(92)
Products of Trigonometric Functions and Monomials
Z
x
1x
e cos xdx = e (sin x + cos x)
2
(106)
Z
bx
1 bx
e cos axdx = 2 2 e (a sin ax + b cos ax) (107)
a +b
Z
x
1x
xe sin xdx = e (cos x x cos x + x sin x)
2
(108)
Z
x
1x
xe cos xdx = e (x cos x sin x + x sin x)
2
(109)
Integrals of Hyperbolic Functions
Z 1
cosh axdx = sinh ax a
Z
ax
e cosh bxdx =
8
><
ax
e
2 2 [a cosh bx
>:
a2ax e
b
x
+
4a 2
Z
6 b sinh bx] a = b
a=b
1 sinh axdx = cosh ax
a
(110)
(111) (112)
Z cos[(a b)x]
cos ax sin bxdx = 2(a b)
cos[(a + b)x] 6 ,a = b
2(a + b)
(71)
Z
2
sin[(2a b)x]
sin ax cos bxdx =
4(2a b)
sin bx sin[(2a + b)x]
+
(72)
2b
4(2a + b)
Z
2
13
sin x cos xdx = sin x
(73)
3
Z
2
cos[(2a b)x] cos bx
cos ax sin bxdx =
4(2a b)
2b
cos[(2a + b)x] (74)
4(2a + b)
Z
2
13
cos ax sin axdx = cos ax
(75)
3a
Z
2
2
x
sin ax cos bxdx =
4
sin 2ax 8a
sin[2(a b)x] 16(a b)
sin 2bx sin[2(a + b)x]
+
(76)
8b
16(a + b)
Z
2
2
x sin 4ax
sin ax cos axdx =
(77)
8 32a Z
1
tan axdx = ln cos ax
(78)
a Z
2
1
tan axdx = x + tan ax
(79)
a
Z
x cos xdx = cos x + x sin x
(93)
Z
1
x
x cos axdx = 2 cos ax + sin ax
(94)
a
a
Z
2
2
x cos xdx = 2x cos x + x 2 sin x (95)
Z
2
22
2x cos ax a x 2
x cos axdx = 2 + 3 sin ax (96)
a
a
Z
n
1
+1 n
x cosxdx = (i) [ (n + 1, ix)
2
n
+( 1) (n + 1, ix)]
(97)
Z
n
1
1 n
n
x cosaxdx = (ia) [( 1) (n + 1, iax)
2
(n + 1, ixa)]
(98)
Z
x sin xdx = x cos x + sin x
Z
x cos ax sin ax
x sin axdx =
+2
a
a
Z
2
2
x sin xdx = 2 x cos x + 2x sin x
(99) (100) (101)
Z
2
22
2 ax
2x sin ax
x sin axdx = 3 cos ax + 2
a
a
(102)
Z
ax
e sinh bxdx =
8
><
ax
e
2 2 [ b cosh bx + a sinh bx]
>:
a2 ax
e
b
x
4a 2
a 6= b a=b
(113)
Z
ax
e tanh bxdx =
8
>>>>><
(a+2b)x
e
(a + 2b)
2
F1
h 1
+
a
, 1, 2 2hb
+
a ,
2b
i
2bx
e i
>>>>>:
ax
e
1
ax
e
2
F1
a , 1, 1E,
2 bx
e
a 1 ax 2b 2 tan [e ]
a Z
1 tanh ax dx = ln cosh ax
a
6 a=b a=b
(114) (115)
Z
1 cos ax cosh bxdx = 2 2 [a sin ax cosh bx
a +b
+b cos ax sinh bx]
(116)
Z
1 cos ax sinh bxdx = 2 2 [b cos ax cosh bx+
a +b
a sin ax sinh bx]
(117)
Z
1 sin ax cosh bxdx = 2 2 [ a cos ax cosh bx+
a +b
b sin ax sinh bx]
(118)
Z
n+1
n
tan ax
tan axdx =
a(1 + n)
n+1 n+3
2
2 F1
, 1, , tan ax
2
2
Z
3
1
12
tan axdx = ln cos ax + sec ax
a
2a
Z
n
1n
n
x sin xdx = (i) [ (n + 1, ix) ( 1) (n + 1, ix)]
2
(103) (80)
Products of Trigonometric Functions and Exponentials
(81)
Z
|
|
1
x
sec xdx = ln sec x + tan x = 2 tanh tan (82)
2
Z
x
1x
e sin xdx = e (sin x cos x)
2
(104)
Z
2
1
sec axdx = tan ax
a
Z
bx
1 bx
(83)
e sin axdx = 2 2 e (b sin ax a cos ax) (105)
a +b
Z 1
sin ax sinh bxdx = 2 2 [b cosh bx sin ax a +b
a cos ax sinh bx]
(119)
Z 1
sinh ax cosh axdx = [ 2ax + sinh 2ax] 4a
(120)
Z
1 sinh ax cosh bxdx = 2 2 [b cosh bx sinh ax
ba
a cosh ax sinh bx]
(121)
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