1. cos (2x) 2sin(x) cos(x) tan(x) = cot (x) tan (2x)

Trigonometry (11th Edition)
11th Edition
ISBN:9780134217437
Author:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Chapter1: Trigonometric Functions
Section: Chapter Questions
Problem 1RE: 1. Give the measures of the complement and the supplement of an angle measuring 35°.
icon
Related questions
Question

Verify (prove) the following two (#1 and #2) trigonometry identities:

1. (see attached image).

2. (see attached image).

1.
cos (2x
2sin(x) cos(x) tan(x)
=
cot (x)
tan (2x)
Transcribed Image Text:1. cos (2x 2sin(x) cos(x) tan(x) = cot (x) tan (2x)
2sin(x). cos(x) = cot(x) . (1 + cos(2x))
=
tan² (x)
2,
Transcribed Image Text:2sin(x). cos(x) = cot(x) . (1 + cos(2x)) = tan² (x) 2,
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Trigonometry (11th Edition)
Trigonometry (11th Edition)
Trigonometry
ISBN:
9780134217437
Author:
Margaret L. Lial, John Hornsby, David I. Schneider, Callie Daniels
Publisher:
PEARSON
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Algebra and Trigonometry
Algebra and Trigonometry
Trigonometry
ISBN:
9781938168376
Author:
Jay Abramson
Publisher:
OpenStax
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning