1. Which of the following identities is not true? 7tana A. sin 2a 2 sina cos a B. cos Za cos-asin a C. cos 2a 2cos+1 D. tan2a 1-tan'a 2.Find the exact value ol sin 2x, given.cos.x D -nnd sinx 0. B. D. 4 C.

Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Additional Topics In Trigonometry
Section: Chapter Questions
Problem 1CT: Take this test as you would take a test in class. When you are finished, check your work against the...
icon
Related questions
Topic Video
Question
Answer number 1 and 2
Derive double angle identities.
Write expression in terms of a single trigonometric function
Use the double angle identities to solve exact trigonometric values.
Use the double angle identitica to solve equations.
WHATIKNOW
Directions: Read cach item carefully Wite the letter of the correct answer on your notebook.
1. Which of the following identities is not true?
A. sin 2a= 2 sin.a cos a B. cos2a cos
asina C.cos 2z2cos41 D. tan2a
Ztane
1Hanta
2.Find the exact value ol sin 2x, given cos.x -
and sinx0.
A
B.!
C.
25
D.
3. Given sing==,and cosa>0, find the exact value of cos 2a.
B
A.
4. sin 2a=
A. 2 sin a coS a
D.
25
C.2sina
D. all of these
5. cos a-sin' a
A. sin 2a
B. cos 2a
C. cos" a
D. 1
629
WHAT'S IN
Activity:
Investigate the following things
1. Relationnshin hetucen
Transcribed Image Text:Derive double angle identities. Write expression in terms of a single trigonometric function Use the double angle identities to solve exact trigonometric values. Use the double angle identitica to solve equations. WHATIKNOW Directions: Read cach item carefully Wite the letter of the correct answer on your notebook. 1. Which of the following identities is not true? A. sin 2a= 2 sin.a cos a B. cos2a cos asina C.cos 2z2cos41 D. tan2a Ztane 1Hanta 2.Find the exact value ol sin 2x, given cos.x - and sinx0. A B.! C. 25 D. 3. Given sing==,and cosa>0, find the exact value of cos 2a. B A. 4. sin 2a= A. 2 sin a coS a D. 25 C.2sina D. all of these 5. cos a-sin' a A. sin 2a B. cos 2a C. cos" a D. 1 629 WHAT'S IN Activity: Investigate the following things 1. Relationnshin hetucen
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Discrete Probability Distributions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, trigonometry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,