Use an addition or subtraction formula to find the exact value. 1. sin15° 2. cos 12 3. tan 75°

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter7: Analytic Trigonometry
Section7.4: Multiple-angle Formulas
Problem 15E
icon
Related questions
Question
Use an addition or subtraction formula to find the exact value.
1.
sin15°
2.
cos-
12
3.
tan 75°
Transcribed Image Text:Use an addition or subtraction formula to find the exact value. 1. sin15° 2. cos- 12 3. tan 75°
4. Find the exact value of cos(a-B).
sin a = - for a in Quadrant IV and tan ß:
12
for ß in Quadrant II.
5
5. Verify the identity.
37
a. sin] x-
CoS x
2
Transcribed Image Text:4. Find the exact value of cos(a-B). sin a = - for a in Quadrant IV and tan ß: 12 for ß in Quadrant II. 5 5. Verify the identity. 37 a. sin] x- CoS x 2
Expert Solution
steps

Step by step

Solved in 4 steps

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:
9781337278461
Author:
Ron Larson
Publisher:
Cengage Learning
Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
Geometry
ISBN:
9781337614085
Author:
Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:
Cengage,
Elementary Geometry for College Students
Elementary Geometry for College Students
Geometry
ISBN:
9781285195698
Author:
Daniel C. Alexander, Geralyn M. Koeberlein
Publisher:
Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
Trigonometry
ISBN:
9781305652224
Author:
Charles P. McKeague, Mark D. Turner
Publisher:
Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL