For \( f(x)=x^{3} \) and \( g(x)=\sqrt[3]{x} \), find \( (f \circ g)(x) \) and \( (g \circ f)(x) \). Then determine whether \( (f \circ g)(x)=(g \circ f)(x) \). What is \( (f \circ g)(x) \) ? \( (f \circ g)(x)=x \) What is \( (g \circ f)(x) \) ? \( (g \circ f)(x)=\square \)
Solución de inteligencia artificial de Upstudy
Responder
Solución
Respondido por UpStudy AI y revisado por un tutor profesional


Beyond the Answer
Let's first clarify our function compositions. To find \( (f \circ g)(x) \): \[ (f \circ g)(x) = f(g(x)) = f\left(\sqrt[3]{x}\right) = \left(\sqrt[3]{x}\right)^{3} = x \] Now, for \( (g \circ f)(x) \): \[ (g \circ f)(x) = g(f(x)) = g(x^{3}) = \sqrt[3]{x^{3}} = x \] So, we have: \[ (g \circ f)(x) = x \] This leads us to conclude that \( (f \circ g)(x) = (g \circ f)(x) = x \). Therefore, the two compositions are equal! So, the final answers are: What is \( (g \circ f)(x) \)? \( (g \circ f)(x) = x \) And yes, \( (f \circ g)(x) = (g \circ f)(x) \).
