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Mathematics
Mathematics
Problem
On the interval
[
−
π
,
π
]
[-\pi,\pi]
[
−
π
,
π
]
, the graphs of
y
=
∣
sin
x
∣
y=|\sin x|
y
=
∣
sin
x
∣
and
y
=
sin
x
y=\sin x
y
=
sin
x
enclose a region. What is the exact area of this region? a)
8
8
8
b)
2
2
2
c)
4
4
4
d)
0
0
0
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