Sovle `tan^(-1)2x+tan^(-1)3x=(pi)/4`

Prove that tan^(-1) 2 + tan^(-1) 3 = (3pi)/4

Solve the following equations : tan^(-1)(2x)+tan^(-1)(3x)=pi/4

Prove that: tan^(-1)x+tan^(-1)(1/x)=pi/2

Find the values of each of the following : tan^(-1)2x+tan^(-1)(1/(x+4))=pi/2 then find x.

Prove that, tan^(-1)x+"tan"^(-1)(2x)/(1-x^(2))=tan^(-1)((3x-x^(3))/(1-3x^(2))),|x|lt1/sqrt3

Show that ( tan^(-1) 1 + tan^(-1) 2 + tan^(-1) 3) = pi

Evaluate: tan{2tan^(-1)(1/5)-pi/4}

Solve for x : tan^(-1)(x-1)+tan^(-1)x+tan^(-1)(x+1)=tan^(-1)3x

2 tan ( tan^(-1)(x)+ tan^(-1)(x^(3))) " where " x in R - {-1,1} is equal to