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Mathematics
Mathematics
Problem
Let
f
(
x
)
=
x
3
−
6
x
2
+
9
x
+
7
f(x)=x^{3}-6x^{2}+9x+7
f
(
x
)
=
x
3
−
6
x
2
+
9
x
+
7
. Find the
x
x
x
-coordinate at which
f
f
f
attains a local minimum. a)
x
=
4
x=4
x
=
4
b)
x
=
3
x=3
x
=
3
c)
x
=
1
x=1
x
=
1
d)
x
=
2
x=2
x
=
2
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