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Mathematics
Mathematics
Problem
The graph of a differentiable function
f
f
f
has a horizontal tangent at the point
(
2
,
5
)
(2,5)
(
2
,
5
)
. Decide whether
(
f
−
1
)
′
(
5
)
(f^{-1})'(5)
(
f
−
1
)
′
(
5
)
is positive, negative, zero, or does not exist, and give a brief reason for your choice.
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