Use the angle sum identities to determine the exact value of the given expression. Зп ㅠ 13π Part A: By getting a common denominator, one can show that + = Use this fact to 4 3 12 13π determine an exact value of cos 12 Answer: 2π π 11T Part B: Use the fact that + to determine an exact value of sin 3 4 12 12 Answer:
Use the angle sum identities to determine the exact value of the given expression. Зп ㅠ 13π Part A: By getting a common denominator, one can show that + = Use this fact to 4 3 12 13π determine an exact value of cos 12 Answer: 2π π 11T Part B: Use the fact that + to determine an exact value of sin 3 4 12 12 Answer:
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.2: Trigonometric Functions Of Angles
Problem 68E
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![Use the angle sum identities to determine the exact value of the given expression.
Part A: By getting a common denominator, one can show that
determine an exact value of cos(
13π
12
k
Зл
13π
+
4
====
. Use this fact to
3
12
Answer:
2π
Part B: Use the fact that
3
Answer:
74
+
71
11π
11T
to determine an exact value of sin
4
12
12](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fbce7595f-a0e6-4d54-8635-7a1c2f38087c%2Fb919f2d0-b2ca-48ca-8189-9179d7a6b7b1%2F2t6vush_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Use the angle sum identities to determine the exact value of the given expression.
Part A: By getting a common denominator, one can show that
determine an exact value of cos(
13π
12
k
Зл
13π
+
4
====
. Use this fact to
3
12
Answer:
2π
Part B: Use the fact that
3
Answer:
74
+
71
11π
11T
to determine an exact value of sin
4
12
12
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