OXO Verifying a Trigonometric Identity In Exercises 25-30, verify the identity algebraically. Use a graphing utility to check your result graphically. 25. sec y cos y = 1 26. cot? y(sec? y – 1) = 1 tan? 0 27. sec 0 cot³ t 28. csc t cos t(csc² t – 1) sin 0 tan 0 1 sec2 B sec 0 – 1 30. 1 - cos 0 29. + tan ß sec 0 tan B tan B

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 96E
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Verifying a Trigonometric Identity In
Exercises 25–30, verify the identity
algebraically. Use a graphing utility to check
your result graphically.

OXO Verifying a Trigonometric Identity In
Exercises 25-30, verify the identity
algebraically. Use a graphing utility to check
your result graphically.
25. sec y cos y = 1
26. cot? y(sec? y – 1) = 1
tan? 0
27.
sec 0
cot³ t
28.
csc t
cos t(csc² t – 1)
sin 0 tan 0
1
sec2 B
sec 0 – 1
30.
1 - cos 0
29.
+ tan ß
sec 0
tan B
tan B
Transcribed Image Text:OXO Verifying a Trigonometric Identity In Exercises 25-30, verify the identity algebraically. Use a graphing utility to check your result graphically. 25. sec y cos y = 1 26. cot? y(sec? y – 1) = 1 tan? 0 27. sec 0 cot³ t 28. csc t cos t(csc² t – 1) sin 0 tan 0 1 sec2 B sec 0 – 1 30. 1 - cos 0 29. + tan ß sec 0 tan B tan B
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