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Mathematics
Mathematics
Problem
If
x
∈
(
−
1
2
,
1
)
x \in \left( -\frac{1}{\sqrt{2}}, 1 \right)
x
∈
(
−
2
1
,
1
)
. Differentiate
tan
−
1
(
1
−
x
2
x
)
\tan^{-1} \left( \frac{\sqrt{1-x^2}}{x} \right)
tan
−
1
(
x
1
−
x
2
)
w.r.t.
cos
−
1
(
2
x
1
−
x
2
)
\cos^{-1}(2x\sqrt{1-x^2})
cos
−
1
(
2
x
1
−
x
2
)
.
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