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Mathematics
Mathematics
Problem
If
y
=
x
3
cos
x
y=x^3 \cos x
y
=
x
3
cos
x
, determine
d
y
d
x
\dfrac{dy}{dx}
d
x
d
y
at
x
=
π
2
x=\dfrac{\pi}{2}
x
=
2
π
.
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