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Questions  >>  CBSE XII  >>  Math  >>  Model Papers
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Prove the following : \[ tan^{-1} \bigg( \frac{x}{y} \bigg)- tan^{-1} \bigg( \frac{x-y}{x+y} \bigg)= \frac{\pi}{4},y \neq 0. \]

This is Q.No. 17 of Misc. chapter 2

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