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Functions
medium
0:00.0
If
f
(
x
)
=
5
x
f(x) = 5^x
f
(
x
)
=
5
x
, what is
f
−
1
(
125
)
f^{-1}(125)
f
−
1
(
125
)
?
A
2
2
2
B
3
3
3
C
25
25
25
D
5
5
5
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