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Home  >>  CBSE XII  >>  Math  >>  Model Papers
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Prove that $ \tan^{-1}\large\frac{1}{3}$$+\tan^{-1}\large\frac{1}{2}=\frac{\pi}{4} $

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\[Tan^{-1}x+Tan^{-1}y=Tan^{-1}\:\frac{x+y}{1-xy}\]

using the forfula above prove the result.
answered Feb 14, 2013 by rvidyagovindarajan_1
 

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