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Mathematics
Mathematics
Problem
If the average value of
f
(
x
)
=
x
2
f(x)=x^{2}
f
(
x
)
=
x
2
on the interval
[
0
,
a
]
[0,a]
[
0
,
a
]
equals
9
9
9
, determine the positive value of
a
a
a
. a)
6
6
6
b)
3
3
3\sqrt3
3
3
c)
9
9
9
d)
3
3
3
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