The smallest and the largest values of \[{{\tan }^{-1}}\left( \frac{1-x}{1+x} \right)\text{ },\,\,0\le x\le 1\]are

\[-\frac{\pi }{4},\frac{\pi }{4}\]

\[\frac{\pi }{4},\,\frac{\pi }{2}\]

The smallest and the largest values of \[{{\tan }^{-1}}\left( \frac{1-

1.	The smallest and the largest values of \[{{\tan }^{-1}}\left( \frac{1-x}{1+x} \right)\text{ },\,\,0\le x\le 1\]are
A.	\[0,\,\,\pi \]
B.	\[0,\,\frac{\pi }{4}\]
C.	\[-\frac{\pi }{4},\frac{\pi }{4}\]
D.	\[\frac{\pi }{4},\,\frac{\pi }{2}\]
Answer» C. \[-\frac{\pi }{4},\frac{\pi }{4}\]

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The smallest and the largest values of \[{{\tan }^{-1}}\left( \frac{1-x}{1+x} \right)\text{ },\,\,0\le x\le 1\]are

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