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Mathematics
Problem
Find the local minimum value of the function
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
. a)
11
11
11
b)
3
3
3
c)
7
7
7
d)
9
9
9
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