Let f:R→(0,1)𝑓:𝑅→(0,1) defined by f(x)=e−x2𝑓(𝑥)=𝑒−𝑥2. Find the inverse function of f(x)𝑓(𝑥).Question 3Select one:a.f−1(x)=ln(x−−√)𝑓−1(𝑥)=ln(𝑥) with domain (0,1)(0,1)b.f−1(x)=ln(x−−√)𝑓−1(𝑥)=ln(𝑥) with domain R+𝑅+c.f−1(x)𝑓−1(𝑥) does not existd.f−1(x)=ln(1/x)−−−−−−√𝑓−1(𝑥)=ln(1/𝑥) with domain R+𝑅+e.f−1(x)=ln(1/x)−−−−−−√𝑓−1(𝑥)=ln(1/𝑥) with domain (0,1)
Question
Let f:R→(0,1)𝑓:𝑅→(0,1) defined by f(x)=e−x2𝑓(𝑥)=𝑒−𝑥2. Find the inverse function of f(x)𝑓(𝑥).Question 3Select one:a.f−1(x)=ln(x−−√)𝑓−1(𝑥)=ln(𝑥) with domain (0,1)(0,1)b.f−1(x)=ln(x−−√)𝑓−1(𝑥)=ln(𝑥) with domain R+𝑅+c.f−1(x)𝑓−1(𝑥) does not existd.f−1(x)=ln(1/x)−−−−−−√𝑓−1(𝑥)=ln(1/𝑥) with domain R+𝑅+e.f−1(x)=ln(1/x)−−−−−−√𝑓−1(𝑥)=ln(1/𝑥) with domain (0,1)
Solution
Para encontrar la función inversa de , sigamos los siguientes pasos:
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Definir la función y la variable:
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Intercambiar y :
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Resolver para :
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Determinar el dominio de la función inversa: Dado que mapea a , la función inversa debe tener dominio en .
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Seleccionar la rama correcta: Para que sea una función, debemos elegir una sola rama. Generalmente, se elige la rama positiva:
Por lo tanto, la función inversa es: con dominio .
La respuesta correcta es: c. no existe
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