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Mathematics
Mathematics
Problem
Differentiate w.r.t.
x
x
x
: a.
tan
−
1
{
1
+
cos
x
1
−
cos
x
}
\tan^{-1} \left\{ \sqrt{\frac{1 + \cos x}{1 - \cos x}} \right\}
tan
−
1
{
1
−
cos
x
1
+
cos
x
}
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