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Integrals
medium
0:00.0
Evaluate
∫
0
π
/
2
cos
x
d
x
\int_0^{\pi/2} \cos x dx
∫
0
π
/2
cos
x
d
x
.
A
0
B
1
C
-1
D
π
/
2
\pi/2
π
/2
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