Pregunta
Find \( f(g(x)) \) and \( g(f(x)) \) and determine whether the pair of functions \( f \) and \( g \) are inverses of each other. \( f(x)=x \) and \( g(x)=x \) \( f(g(x))=\square \)
Ask by Ramirez Lee. in the United States
Feb 20,2025
Solución de inteligencia artificial de Upstudy
Respuesta verificada por el tutor
Responder
\( f(g(x)) = x \) and \( g(f(x)) = x \). The functions \( f \) and \( g \) are inverses of each other.
Solución
To find \( f(g(x)) \) and \( g(f(x)) \), we need to substitute the expressions for \( f(x) \) and \( g(x) \) into each other.
Given:
\( f(x) = x \)
\( g(x) = x \)
1. Find \( f(g(x)) \):
Substitute \( g(x) \) into \( f(x) \):
\( f(g(x)) = f(x) = x \)
2. Find \( g(f(x)) \):
Substitute \( f(x) \) into \( g(x) \):
\( g(f(x)) = g(x) = x \)
Now, we need to determine whether the pair of functions \( f \) and \( g \) are inverses of each other. For two functions to be inverses of each other, the composition of the functions in both orders should result in the original input. In this case, both \( f(g(x)) \) and \( g(f(x)) \) result in \( x \), which means the pair of functions \( f \) and \( g \) are inverses of each other.
Respondido por UpStudy AI y revisado por un tutor profesional
Como
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Beyond the Answer
Since \( f(x) = x \) and \( g(x) = x \), let's find \( f(g(x)) \). First, substitute \( g(x) \) into \( f \): \[ f(g(x)) = f(x) = x. \] Next, let's find \( g(f(x)) \): \[ g(f(x)) = g(x) = x. \] Now we have both compositions: - \( f(g(x)) = x \) - \( g(f(x)) = x \) Since both compositions give us \( x \), it shows that \( f \) and \( g \) are indeed inverses of each other!
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