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Mathematics
Mathematics
Problem
Find all critical points of the function
f
(
x
)
=
x
4
−
4
x
2
f(x)=x^4-4x^2
f
(
x
)
=
x
4
−
4
x
2
that lie in the interval
[
−
3
,
3
]
[-3,3]
[
−
3
,
3
]
.
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