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Mathematics
Mathematics
Problem
Obtain differential coefficient of
tan
−
1
1
+
x
2
−
1
x
\tan^{-1} \frac{\sqrt{1+x^2}-1}{x}
tan
−
1
x
1
+
x
2
−
1
with respect to
cos
−
1
1
+
1
+
x
2
2
1
+
x
2
\cos^{-1} \sqrt{\frac{1+\sqrt{1+x^2}}{2\sqrt{1+x^2}}}
cos
−
1
2
1
+
x
2
1
+
1
+
x
2
.
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