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ધારો tan^-1 y=tan^-1 x+tan^-1 ((2x)/(1-...

ધારો `tan^-1 y=tan^-1 x+tan^-1 ((2x)/(1-x^2))` જ્યાં `|x|<1/sqrt3` તો `y` નું મૂલ્ય …..છે.

A

`(3x+x^3)/(1+3x^2)`

B

`(3x-x^3)/(1-3x^2)`

C

`(3x+x^3)/(1-3x^2)`

D

`(3x-x^3)/(1+3x^2)`

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