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INTEGRATION_Trigonometric Functions and Hyperbolic Functions

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INTEGRATION: Trigonometric Functions & Hyperbolic Functions BACKGROUND THEORY Corresponding to each trigonometric (or hyperbolic) differentiation formula is an integration formula. Although these are always given in a formula sheet, it will help you a great deal in the exam in terms of saving time ...

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  • September 14, 2022
  • 5
  • 2022/2023
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INTERGRATION: TRIGONOMETRIC FUCTIONS AND HYPERBOLIC
FUCTIONS
INTEGRATION: Trigonometric Functions & Hyperbolic Functions

BACKGROUND THEORY
Corresponding to each trigonometric (or hyperbolic) differentiation formula is an integration formula. Although these
are always given in a formula sheet, it will help you a great deal in the exam in terms of saving time if you learn the
formulas by heart.

Trigonometric Functions Hyperbolic Functions

d du d du
sin u   cos u sinh u   cosh u
dx dx dx dx


 cos u du  sin u  C

 cosh u du  sinh u  C

d du d du
cos u    sin u cosh u   sinh u
dx dx dx dx


 sin u du   cos u  C

 sinh u du  cosh u  C

d du d du
 tan u   sec2 u  tanh u   sech 2 u
dx dx dx dx


 sec2 u du  tan u  C

 sech 2 u du  tanh u  C

d du d du
sec u   sec u  tan u sech u     sech u  tanh u 
dx dx dx dx


 sec u tan u du  sec u  C

 sech u tanh u du   sech u  C

d du d du
csc u    csc u  cot u csch u     csch u  coth u 
dx dx dx dx


 csc u cot u du   csc u  C

 csch u coth u du   csch u  C

d du d du
cot u    csc2 u coth u    csch 2 u
dx dx dx dx


 csc2 u du   cot u  C

 csch 2 u du   coth u  C


Special Standard Integrals:
Trigonometric Functions Hyperbolic Functions


 tan udu  ln sec u  C  tanh u du  ln  cosh u   C
 cot u du  ln sin u  C  coth u du  ln sinh u  C
 sec u du  ln sec u  tan u  C  sech u du  arctan sinh u   C
 csc u du  ln csc u  cot u  C  csch u du  ln tanh    C u
2




This study source was downloaded by 100000844708667 from CourseHero.com on 09-14-2022 03:10:15 GMT -05:00


https://www.coursehero.com/file/43898061/INTEGRATION-Trigonometric-Functions-and-Hyperbolic-Functionspdf/

, Note: Integrals of sech u and csch u are not in the formula sheet.
EXERCISES
Evaluate the following integrals:


 tan
1 2
x dx

2
sec2 x
 x
dx


 sin 3x  cos 3x  dx
3 2



4
sec2 x
 tan x
dx

5 
4



 0
1  tan 2 x dx



 cosh  x 1 sinh  x 1 dx
6 2





7 cosh x
dx
sinh x
8
 x2 
 x csch 2 
 2
 dx

9
csch  1 x  coth  1 x 
 x2
dx



SOLUTIONS
Question 1


 tan
2
x dx

We change into a trigonometric identity (Grade 11 stuff):

 sec x 1 dx
2




 
 sec x dx  dx 2



 tan x  x  C  Easy!




This study source was downloaded by 100000844708667 from CourseHero.com on 09-14-2022 03:10:15 GMT -05:00


https://www.coursehero.com/file/43898061/INTEGRATION-Trigonometric-Functions-and-Hyperbolic-Functionspdf/

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