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Mathematics
Mathematics
Problem
Evaluate
∫
−
π
π
x
3
cos
3
x
d
x
\int_{-\pi}^{\pi} x^3 \cos^3 x dx
∫
−
π
π
x
3
cos
3
x
d
x
(1)
π
\pi
π
(2)
π
4
\frac{\pi}{4}
4
π
(3)
2
π
2\pi
2
π
(4) 0
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