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Mathematics
Mathematics
Problem
Evaluate and simplify
J
=
∫
[
x
sin
2
x
+
x
cos
2
x
]
d
x
\displaystyle J = \int \bigl[x\sin 2x + x\cos 2x\bigr] \,dx
J
=
∫
[
x
sin
2
x
+
x
cos
2
x
]
d
x
.
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