fx=3x+2 -1 f^-1x=
To find the inverse of the function f(x), we need to switch the roles of x and y and solve for y.
Let y = f(x) = 3/(x+2) - 1
Switching the roles of x and y, we get:
x = 3/(y + 2) - 1
To solve for y, we can isolate y on one side of the equation:
x + 1 = 3/(y + 2)
Multiply both sides by (y + 2):
(x + 1)(y + 2) = 3
Expand the left side:
xy + 2x + y + 2 = 3
Rearrange the terms:
xy + y = 3 - 2x - 2
Combine like terms:
xy + y = 1 - 2x
Factor out y:
y(x + 1) = 1 - 2x
Divide both sides by (x + 1):
y = (1 - 2x)/(x + 1)
Therefore, the inverse of f(x) = 3/(x+2) - 1 is f^(-1)(x) = (1 - 2x)/(x + 1)
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