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Derivatives
medium
0:00.0
If
f
(
x
)
=
cos
−
1
(
x
)
f(x) = \cos^{-1}(x)
f
(
x
)
=
cos
−
1
(
x
)
, then
f
′
(
0
)
f'(0)
f
′
(
0
)
is:
A
-1
B
1
C
0
D
Undefined
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