Prove that tan-1x+tan-1(2x/1-x^2)=tan-1((3x-x^3)/(1-3x^2)). All India 2010. INVERSE TRIGONOMETRY.

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This video explains about to Prove that tan-1x+tan-1(2x/1-x^2)=tan-1((3x-x^3)/(1-3x^2)). All India 2010.

This question have been adapted from: All India 2010 PREVIOUS YEAR QUESTION PAPERS.

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