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Mathematics
Mathematics
Problem
Let
f
(
x
)
=
∣
x
2
−
4
∣
f(x)=|x^{2}-4|
f
(
x
)
=
∣
x
2
−
4∣
for all real
x
x
x
. Determine the
x
x
x
-values of all critical points of
f
f
f
.
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