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Mathematics
Mathematics
Problem
Evaluate
∫
x
tan
−
1
(
a
x
)
d
x
\displaystyle \int x\,\tan^{-1}(a x)\,dx
∫
x
tan
−
1
(
a
x
)
d
x
, where
a
≠
0
a\neq 0
a
=
0
.
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