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Mathematics
Mathematics
Problem
If
y
=
tan
−
1
1
−
x
1
+
x
y = \tan^{-1} \sqrt{\frac{1-x}{1+x}}
y
=
tan
−
1
1
+
x
1
−
x
, then find
d
y
d
x
\frac{dy}{dx}
d
x
d
y
when
−
1
<
x
<
1
-1 < x < 1
−
1
<
x
<
1
.
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