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What is the range of the principal value of $\tan^{-1}x$?

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Answer: $\left [ -\frac{\pi}{2}, \frac{\pi}{2}\right ]$

The range of the principal value of $\tan^{-1}x$ is $\left [ -\frac{\pi}{2}, \frac{\pi}{2}  \right ]$

answered Mar 12, 2013 by balaji.thirumalai
 
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