" (1) "tan^(-1)((1+x)/(1-x))=(pi)/(4)+tan^(-1)x,x<1

tan^(-1)((1+x)/(1-x))=(pi)/(4)+tan^(-1)x,x<1

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

The relation tan^(-1)((1+x)/(1-x))=(pi)/(4)+tan^(-1)x holds true for all

The relation tan^(-1)((1+x)/(1-x))=(pi)/(4)+tan^(-1)x holds true for all

Prove that i) tan^(-1)(1+x)/(1-x)=pi/4 + tan^(-1)x,x lt 1 ii) tan^(-1)x+cot^(-1)(x+1)=tan^(-1)(x^(2)+x+1)

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

Prove that : tan^-1((1-x)/(1+x))= pi/4 - tan^-1 x

Prove that tan^-1(1+x)/(1-x) = pi/4 + tan^-1x, x < 1

tan^(-1)(x-1)+tan^(-1)(x+1)=(pi)/(4)

Solve : tan^(-1)((x+1)/(x-1)) + tan^(-1)( (x-1)/(x)) = pi + tan^(-1) (-7)