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Mathematics
Mathematics
Problem
Calculate
d
d
x
[
(
3
x
2
−
4
x
)
(
cos
x
)
]
\displaystyle \frac{d}{dx}\bigl[(3x^{2}-4x)(\cos x)\bigr]
d
x
d
[
(
3
x
2
−
4
x
)
(
cos
x
)
]
.
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