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Mathematics
Mathematics
Problem
Calculate
∫
0
π
/
6
3
cos
(
3
x
)
d
x
\displaystyle\int_{0}^{\pi/6} 3\cos(3x)\,dx
∫
0
π
/6
3
cos
(
3
x
)
d
x
. a)
1
2
\dfrac{1}{2}
2
1
b)
1
3
\dfrac{1}{3}
3
1
c)
1
1
1
d)
3
2
\dfrac{\sqrt{3}}{2}
2
3
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