Concept explainers
(a)
To represent:Thetrigonometric expression
(a)
Answer to Problem 89E
The trigonometric expression
Explanation of Solution
Given information:
The given equationis
Formula Used:
Proof:
Compare the expression
Calculate the value of
Calculate the value of
Consider the left hand side of the equation.
Draw the graph for
Figure (1)
From the above, it is clear that both the graph coincides. Therefore, the trigonometric expression
(b)
To represent:The trigonometric expression
(b)
Answer to Problem 89E
The trigonometric expression
Explanation of Solution
Given information:
The given equationis
Formula Used:
Proof:
Compare the expression
Calculate the value of
Calculate the value of
Consider the left hand side of the equation.
Draw the graph for
Figure (2)
From the above, it is clear that both the graph coincides. Therefore, the trigonometric expression
Chapter 5 Solutions
Precalculus with Limits: A Graphing Approach
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- Calculus: Early TranscendentalsCalculusISBN:9781319050740Author:Jon Rogawski, Colin Adams, Robert FranzosaPublisher:W. H. FreemanCalculus: Early Transcendental FunctionsCalculusISBN:9781337552516Author:Ron Larson, Bruce H. EdwardsPublisher:Cengage Learning