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Integrals
easy
0:00.0
Evaluate
∫
0
π
/
2
4
cos
(
x
)
d
x
\int_{0}^{\pi/2} 4\cos(x) \, dx
∫
0
π
/2
4
cos
(
x
)
d
x
.
A
0
B
2
C
4
D
8
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