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Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.3: The Addition And Subtraction Formulas
Problem 71E
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3:54 ) A A A -
@ * * 25%
illeenisd.schoology.com
13
3 of 5
Complete the steps by applying trig identities to show that the left hand side of the equation is equivalent to the right hand side.
cos + sinr - tan a = sec a
Steps:
Cos z + sin z tan a
= sec 2
! NI-
cos
: (1- sin' 2) - sin' x
# s sin
cos z
1 cos z. sins
d
cos
: cse r - 1
1
sin 2
cut
cos z
N a (sin-cas)
z. ait
sir z
- 1
sin z
s r+sin.
H cos a sin a
H cos
cus r
sin
cos I
CUS Z
cus
cos
sin a
Next
+
II
Transcribed Image Text:3:54 ) A A A - @ * * 25% illeenisd.schoology.com 13 3 of 5 Complete the steps by applying trig identities to show that the left hand side of the equation is equivalent to the right hand side. cos + sinr - tan a = sec a Steps: Cos z + sin z tan a = sec 2 ! NI- cos : (1- sin' 2) - sin' x # s sin cos z 1 cos z. sins d cos : cse r - 1 1 sin 2 cut cos z N a (sin-cas) z. ait sir z - 1 sin z s r+sin. H cos a sin a H cos cus r sin cos I CUS Z cus cos sin a Next + II
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