Concept explainers
(a)
To find: the exact value of
(a)
Answer to Problem 9E
The exact value of the given expression is
Explanation of Solution
Given information:
Given expression
Calculation:
Let us calculate the value of
Based on the difference formula of cosine function, we have
Replace
Simplify,
The exact value of the given expression is
(b)
To find: the exact value of
(b)
Answer to Problem 9E
The exact value of the expression is
Explanation of Solution
Given information:
Given expression
Calculation:
Replace each term with the known value and evaluate the expression.
The exact value of the expression is
Chapter 5 Solutions
PRECALCULUS W/LIMITS:GRAPH.APPROACH(HS)
- 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