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Functions
medium
0:00.0
Given
f
(
x
)
=
1
x
−
1
f(x) = \frac{1}{x-1}
f
(
x
)
=
x
−
1
1
, evaluate
f
(
f
(
2
)
)
f(f(2))
f
(
f
(
2
))
.
A
1
B
0
C
2
D
undefined
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