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Mathematics
Mathematics
Problem
Let
f
f
f
be a differentiable function with an inverse
g
g
g
. Suppose
f
f
f
is strictly decreasing and
f
′
(
2
)
=
−
4
f'(2)=-4
f
′
(
2
)
=
−
4
. Which of the following statements must be true? a)
g
′
(
f
(
2
)
)
=
−
4
g'(f(2))=-4
g
′
(
f
(
2
))
=
−
4
b)
g
′
(
f
(
2
)
)
=
1
4
g'(f(2))=\dfrac14
g
′
(
f
(
2
))
=
4
1
c)
g
′
(
f
(
2
)
)
=
−
1
4
g'(f(2))=-\dfrac14
g
′
(
f
(
2
))
=
−
4
1
d)
g
′
(
2
)
=
−
1
4
g'(2)=-\dfrac14
g
′
(
2
)
=
−
4
1
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