6. Rewrite sec 2x; using tan x 8. Rewrite cos x; using cos 2x and cos 4x (Hint: Use problem 7 and the fact that cos x = (cos²x)² ) 7. Rewrite cos²x; using cos 2x

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.5: Product-to-sum And Sum-to-product Formulas
Problem 37E
icon
Related questions
Question
100%

Please solve questions 6,7 and 8. (they are very short). PLEASE SHOW YOUR WORK.

 

Instructions and questions are provided in the image.

6. Rewrite sec 2x; using tan x
8. Rewrite cos4 x; using cos 2x and cos 4x
(Hint: Use problem 7 and the fact that
cos4 x = (cos² x)² )
7. Rewrite cos²x; using cos 2x
Transcribed Image Text:6. Rewrite sec 2x; using tan x 8. Rewrite cos4 x; using cos 2x and cos 4x (Hint: Use problem 7 and the fact that cos4 x = (cos² x)² ) 7. Rewrite cos²x; using cos 2x
Expert Solution
steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Recommended textbooks for you
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
Algebra
ISBN:
9781285463247
Author:
David Poole
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning