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To calculate: The exact value of
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Answer to Problem 21CT
Solution:
The exact value of
Explanation of Solution
Given information:
The expression is
Formula used:
Sum formula:
Calculation:
Consider the expression
By using the sum formula,
First find
Let
Then
Because
So
Since
Let
The point on the circle of radius
This implies that
Since
Since
Now find
Let
Then
Because
So
Since
Let
The point on the circle of radius
This implies that
Since
Since
Now find
By using
Since
Now find
Let
Then
Because
So
Since
Let
The point on the circle of radius
This implies that
Since
Since
By using (1), (2), (3) and (4), in (*)
Therefore, the exact value of
Chapter 7 Solutions
Precalculus
Additional Math Textbook Solutions
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (4th Edition)
Single Variable Calculus: Early Transcendentals (2nd Edition) - Standalone book
Precalculus
Glencoe Math Accelerated, Student Edition
Thomas' Calculus: Early Transcendentals (14th Edition)
- Calculus: Early TranscendentalsCalculusISBN:9781285741550Author:James StewartPublisher:Cengage LearningThomas' Calculus (14th Edition)CalculusISBN:9780134438986Author:Joel R. Hass, Christopher E. Heil, Maurice D. WeirPublisher:PEARSONCalculus: Early Transcendentals (3rd Edition)CalculusISBN:9780134763644Author:William L. Briggs, Lyle Cochran, Bernard Gillett, Eric SchulzPublisher:PEARSON
- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning
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