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Ch. 1 - Functions
Briggs - Calculus: Early Transcendentals 3rd Edition
Briggs3rd EditionCalculus: Early TranscendentalsISBN: 9780136847243Not the one you use?Change textbook
Chapter 1, Problem 88e

Composition of even and odd functions from tables Assume ƒ is an even function,is an odd function, and both are defined at 0. Use the (incomplete) table to evaluate the given compositions. <IMAGE>




e. g(g(-1))

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1
Identify the properties of even and odd functions: An even function satisfies \( f(x) = f(-x) \) and an odd function satisfies \( g(x) = -g(-x) \).
Since \( g \) is an odd function, use the property \( g(-1) = -g(1) \).
Evaluate \( g(-1) \) using the table or given information.
Substitute \( g(-1) \) into the composition \( g(g(-1)) \).
Use the property of odd functions again to evaluate \( g(g(-1)) \) by finding \( g(-g(1)) \).

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Even and Odd Functions

Even functions are defined by the property f(x) = f(-x) for all x in their domain, meaning their graphs are symmetric about the y-axis. Odd functions satisfy the condition g(x) = -g(-x), indicating that their graphs are symmetric about the origin. Understanding these properties is crucial for evaluating compositions of such functions.
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Properties of Functions

Function Composition

Function composition involves applying one function to the result of another, denoted as (f ∘ g)(x) = f(g(x)). In this context, evaluating g(g(-1)) means first finding g(-1) and then using that result as the input for g again. Mastery of this concept is essential for solving the problem at hand.
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Evaluate Composite Functions - Special Cases

Evaluating Functions at Specific Points

To evaluate a function at a specific point, you substitute the point into the function's expression. For example, to find g(-1), you would look up the value of g at -1 from the provided table. This step is fundamental in determining the output of the function compositions required in the question.
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Evaluating Composed Functions