The value of\[{{\tan }^{-1}}\left( \frac{1}{2}\tan 2A)+{{\tan }^{-1}}(cotA)+ta{{n}^{-1}}(co{{t}^{3}}A) \right)\] is

The value of\[{{\tan }^{-1}}\left( \frac{1}{2}\tan 2A)+{{\tan }^{-1}}(

1.	The value of\[{{\tan }^{-1}}\left( \frac{1}{2}\tan 2A)+{{\tan }^{-1}}(cotA)+ta{{n}^{-1}}(co{{t}^{3}}A) \right)\] is
A.	0 if \[\frac{\pi }{4}<A<\frac{\pi }{2}\]
B.	\[\pi \], if \[0<A<\frac{\pi }{4}\]
C.	Both a and b
D.	None of these
Answer» D. None of these

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The value of\[{{\tan }^{-1}}\left( \frac{1}{2}\tan 2A)+{{\tan }^{-1}}(cotA)+ta{{n}^{-1}}(co{{t}^{3}}A) \right)\] is

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