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