CBSE Class 12-science Answered
Find the principal value of![](http://images.topperlearning.com/topper/questions/192_image015.gif)
![](http://images.topperlearning.com/topper/questions/192_image015.gif)
Asked by Topperlearning User | 21 Apr, 2016, 12:50: PM
We know that for any x R, tan-1 x represents an angle in
whose tangent is x
=
Answered by | 21 Apr, 2016, 14:50: PM
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