1.

सिद्ध कीजिए कि `tan^(-1)x+tan^(-1)""(2x)/(1-x^(2))=tan^(-1)""((3x-x^(3))/(1-3x^(2))),|x| lt (1)/(sqrt(3))`

Answer» Correct Answer - `((pi)/(4)+(x)/(2))`


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