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Mathematics
Mathematics
Problem
Find the minimum value of the function
y
=
x
+
4
x
y = x + \frac{4}{x}
y
=
x
+
x
4
for
x
>
0
x > 0
x
>
0
.
−
2
-2
−
2
4
4
4
8
8
8
−
4
-4
−
4
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