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Derivatives
hard
0:00.0
If
f
(
x
)
=
x
1
/
x
f(x) = x^{1/x}
f
(
x
)
=
x
1/
x
, find the
x
x
x
-coordinate of the local maximum.
A
e
B
1/e
C
\sqrt{e}
D
1
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