16alim
16alim 16alim
  • 11-01-2021
  • Mathematics
contestada

if f(x)= x3 -7÷2 find f-1 (x)​

Respuesta :

belgrad belgrad
  • 16-01-2021

Answer:

The inverse of given function is

[tex]f^{-1} ( x ) = (2x+7)^{\frac{1}{3} }[/tex]

Step-by-step explanation:

Explanation:-

Given function

                     [tex]f(x) = \frac{x^{3}-7 }{2}[/tex]

let      y = f(x)

     [tex]y = f(x) = \frac{x^{3}-7 }{2}[/tex]

   ⇒ 2 y = x³ - 7

⇒      2y +7 = x³

⇒   [tex]x = ( 2 y +7 )^{\frac{1}{3} }[/tex]

⇒[tex]f^{-1} ( y ) = (2y+7)^{\frac{1}{3} }[/tex]

The inverse of given function is

[tex]f^{-1} ( x ) = (2x+7)^{\frac{1}{3} }[/tex]

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