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Mathematics
Problem
Let
P
(
t
)
=
20
t
t
2
+
4
P(t)=\dfrac{20t}{t^{2}+4}
P
(
t
)
=
t
2
+
4
20
t
for
t
≥
0
t\ge 0
t
≥
0
. Determine the value of
t
t
t
(in hours) at which
P
P
P
attains its maximum value.
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