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Derivatives
hard
0:00.0
If
f
(
x
)
=
arctan
(
x
2
)
f(x) = \arctan(x^2)
f
(
x
)
=
arctan
(
x
2
)
, what is
f
′
′
(
1
)
f''(1)
f
′′
(
1
)
?
A
-1
B
0
C
1
D
1/2
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