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Exponentials & Logarithms
hard
0:00.0
If
f
(
x
)
=
3
x
f(x) = 3^x
f
(
x
)
=
3
x
, what is
f
−
1
(
9
)
f^{-1}(9)
f
−
1
(
9
)
?
A
2
2
2
B
3
3
3
C
1
/
2
1/2
1/2
D
27
27
27
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