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Mathematics
Mathematics
Problem
If
f
(
x
)
=
x
+
2
x
−
1
f(x)=\dfrac{x+2}{x-1}
f
(
x
)
=
x
−
1
x
+
2
for
x
≠
1
x\neq 1
x
=
1
, determine
f
−
1
(
x
)
f^{-1}(x)
f
−
1
(
x
)
and state its domain.
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