सिद्ध कीजिए कि `tan(2tan^(-1)x)=2tan(tan^(-1)x+tan^(-1)3)`

Prove that tan(2tan^(-1)x)=2tan(tan^(-1)x+tan^(-1)x^(3))

Prove that tan (2 tan^(-1) x ) = 2 tan (tan^(-1) x + tan^(-1) x^(3)) .

Prove that tan (2 tan^(-1) x ) = 2 tan (tan^(-1) x + tan^(-1) x^(3)) .

निम्न समीकरण को हल कीजिए - tan^(-1)(x-1)+tan^(-1)(x)+tan^(-1)(x+1)=tan^(-1) 3 x

For the equation 2x=tan(2tan^(-1)a)+2tan(tan^(-1)a+tan^(-1)a^(3)) , which of the following is valid ?

For the equation 2x=tan(2tan^(-1)a)+2tan(tan^(-1)a+tan^(-1)a^(3)), which of the following is invalid?

For the equation 2x=tan(2tan^(-1)a)+2tan(tan^(-1)a+tan^(-1)a^(3)), which of the following is invalid?

Let |{:(tan^(-1)x, tan^(-1)2x, tan^(-1)3x), (tan^(-1)3x, tan^(-1)x, tan^(-1)2x), (tan^(-1)2x, tan^(-1)3x, tan^(-1)x):}|=0 , then the number of values of x satisfying the equation is

tan^(-1)(2+x)+tan^(-1)(2-x)=tan^(-1)((2)/(3))

सिद्ध कीजिए कि 2tan^(-1)sqrt((b)/(a))=cos^(-1)((a-b)/(a+b))