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Mathematics
Problem
Calculate
d
d
x
[
(
x
2
+
1
)
e
3
x
sin
x
]
\dfrac{d}{dx}\big[(x^{2}+1)e^{3x}\sin x\big]
d
x
d
[
(
x
2
+
1
)
e
3
x
sin
x
]
. Express your final answer in fully factored form.
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