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Mathematics
Problem
Examine
x
=
0
x=0
x
=
0
for the function
f
(
x
)
=
x
7
−
7
x
3
f(x)=x^{7}-7x^{3}
f
(
x
)
=
x
7
−
7
x
3
. State whether the point is a local maximum, local minimum, or neither.
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