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Mathematics
Mathematics
Problem
f
(
x
)
=
x
−
1
x
+
2
f(x) = \frac{x-1}{x+2}
f
(
x
)
=
x
+
2
x
−
1
Find the inverse function
f
−
1
(
x
)
f^{-1}(x)
f
−
1
(
x
)
.
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