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Integrals
hard
0:00.0
Evaluate
∫
0
π
∣
cos
(
x
)
∣
d
x
\int_0^{\pi} |\cos(x)| dx
∫
0
π
∣
cos
(
x
)
∣
d
x
.
A
0
0
0
B
1
1
1
C
2
2
2
D
−
2
-2
−
2
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