amyaLerajone3s amyaLerajone3s

25-11-2016
Mathematics

contestada

find the formula for df^-1/dx.

f(x)=(7-x)^3

Respuesta :

MissPhiladelphia MissPhiladelphia

26-11-2016

Here is the equation to solve the problem above:

f(x) = (7-x)^3
y = (7-x)^3

switch y and x
x = (7 - y)^3

third root of x = 7 - y
-y = 3rootx - 7

so:f′(x)=3^√x−7

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