brandonhhernanp6q8xc brandonhhernanp6q8xc
  • 03-12-2018
  • Mathematics
contestada

Find f^-1(x) for f(x) = 1/x^3

Respuesta :

tramserran
tramserran tramserran
  • 03-12-2018

Answer: [tex]f^{-1}(x) = \frac{\sqrt[3]{x^{2}}}{x}[/tex]

Step-by-step explanation:

[tex]y = \frac{1}{x^{3}}[/tex]

Inverse is when you swap the x's and y's and then solve for "y":

[tex]x = \frac{1}{y^{3}}[/tex]

[tex]y^{3} = \frac{1}{x}[/tex]

[tex]y = \frac{1}{\sqrt[3]{x}}[/tex]

[tex]y = \frac{1}{\sqrt[3]{x}}*(\frac{\sqrt[3]{x}}{\sqrt[3]{x}})^{2}[/tex]

[tex]y = \frac{\sqrt[3]{x^{2}}}{x}[/tex]

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