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Mathematics
Mathematics
Problem
Determine the value of
d
d
x
[
2
x
csc
x
]
\displaystyle \frac{d}{dx}\left[2x\,\csc x\right]
d
x
d
[
2
x
csc
x
]
at
x
=
π
4
x=\frac{\pi}{4}
x
=
4
π
.
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