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Mathematics
Mathematics
Problem
Evaluate
∫
0
π
/
4
cos
(
2
x
+
π
6
)
d
x
\displaystyle \int_{0}^{\pi/4} \cos\bigl(2x+\tfrac{\pi}{6}\bigr)\,dx
∫
0
π
/4
cos
(
2
x
+
6
π
)
d
x
.
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