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Mathematics
Mathematics
Problem
Differentiate
tan
−
1
1
+
x
2
−
1
x
\tan^{-1} \frac{\sqrt{1+x^2}-1}{x}
tan
−
1
x
1
+
x
2
−
1
w.r.t.
tan
−
1
x
\tan^{-1} x
tan
−
1
x
, when
x
≠
0
x \neq 0
x
=
0
.
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