sec' 20 tan 20 de

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 49E
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topic:  Integrating Trigonometric Functions

Evaluate the integral.

 

sec' 20 tan 20 de
Transcribed Image Text:sec' 20 tan 20 de
Table 7.3.2
INTEGRATING PRODUCTS OF TANGENTS AND SECANTS
|
tan" x sec" x dx
PROCEDURE
RELEVANT IDENTITIES
• plit off a factor of sec2x.
• Apply the relevant identity.
• Make the substitution u = tan x.
n even
sec?x = tan?x+1
Split off a factor of sec x tan x.
• Apply the relevant identity.
• Make the substitution u = sec x.
m odd
tan?x = sec?x - 1
• Use the relevant identities to reduce
the integrand to powers of sec x alone.
• Then use the reduction formula for
powers of sec x.
m even
tan?x = sec?x – 1
[n odd
Transcribed Image Text:Table 7.3.2 INTEGRATING PRODUCTS OF TANGENTS AND SECANTS | tan" x sec" x dx PROCEDURE RELEVANT IDENTITIES • plit off a factor of sec2x. • Apply the relevant identity. • Make the substitution u = tan x. n even sec?x = tan?x+1 Split off a factor of sec x tan x. • Apply the relevant identity. • Make the substitution u = sec x. m odd tan?x = sec?x - 1 • Use the relevant identities to reduce the integrand to powers of sec x alone. • Then use the reduction formula for powers of sec x. m even tan?x = sec?x – 1 [n odd
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