The Chemistry Maths Book, Second Edition

(Grace) #1

628 AppendixStandard integrals


(a 1 ≠ 1 ±b)


(a 1 ≠ 1 ±b)


(a 1 ≠ 1 ±b)


Ztanhxdx=lncoshx


Zcoshxdx=sinhx


Zsinhxdx=coshx


Z


dx


x


x


12 −


=−


cos


cot


Z


dx


x


x


12 +


=


cos


tan


=−






















1


2


cos(abx) cos( )


ab


abx


ab


Zsin cosax bx dx


=






















1


2


sin(abx) sin( )


ab


abx


ab


Zcos cosax bx dx


=



















1


2


sin(abx) sin( )


ab


abx


ab


Zsin sinax bx dx


Zcosec


2

dx=−cotx


Zsec tan


2

xdx= x


Zcot cot


2

xdx=− x x−


Ztan tan ln( )


−−

=−+


11 2

1


2


xdx x x 1 x


Zcos cos


−−

=−−


112

xdx x x 1 x


Zsin sin


−−

=+−


112

xdx x x 1 x


=







++



ax


a


x


ax


2

122

22


sinh


Z axdx


22





Z


dx


ax


x


a


22

1





=









sinh


=−








+−



ax


a


x


xa


2

122

22


cosh


Z xadx


22


Z


dx


xa


x


a


22

1


=









cosh


=







+−



ax


a


x


ax


2

122

22


sin


Z axdx


22


Z


dx


ax


x


a


22

1


=









sin


Z


dx


ax


a


ax


ax


22

1


2

=







ln


Z


dx


ax


a


x


a


22

1

1






=









tan


Zcothxdx=ln sinhx

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