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Mathematics
Mathematics
Problem
Let
g
g
g
be a differentiable function whose derivative is given by
g
′
(
x
)
=
x
2
−
4
x
+
3
g'(x)=x^{2}-4x+3
g
′
(
x
)
=
x
2
−
4
x
+
3
for all real
x
x
x
. On which interval is
g
g
g
concave up? a)
(
−
∞
,
2
)
(-\infty,2)
(
−
∞
,
2
)
b)
(
2
,
∞
)
(2,\infty)
(
2
,
∞
)
c)
(
−
∞
,
1
)
(-\infty,1)
(
−
∞
,
1
)
d)
(
3
,
∞
)
(3,\infty)
(
3
,
∞
)
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