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Problem
Problem
Define
y
=
tan
−
1
(
3
x
−
x
3
1
−
3
x
2
)
y = \tan^{-1} \left( \frac{3x-x^3}{1-3x^2} \right)
y
=
tan
−
1
(
1
−
3
x
2
3
x
−
x
3
)
in terms of
tan
−
1
x
\tan^{-1} x
tan
−
1
x
and also draw its graph.
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