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Mathematics
Problem
For
0
<
r
<
10
0<r<10
0
<
r
<
10
, find the value of
r
r
r
that maximizes
p
(
r
)
=
r
100
−
r
2
p(r)=r\sqrt{100-r^{2}}
p
(
r
)
=
r
100
−
r
2
. Give the exact value.
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