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Mathematics
Mathematics
Problem
If
∫
0
2
r
(
x
)
d
x
=
9
\displaystyle\int_0^2 r(x)\,dx = 9
∫
0
2
r
(
x
)
d
x
=
9
, what is the value of
∫
0
2
(
−
1
3
r
(
x
)
)
d
x
\displaystyle\int_0^2\bigl(-\tfrac13 r(x)\bigr)\,dx
∫
0
2
(
−
3
1
r
(
x
)
)
d
x
? a)
3
3
3
b)
−
3
-3
−
3
c)
−
27
-27
−
27
d)
−
1
3
-\tfrac13
−
3
1
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