" 4."tan^(-1)[(sqrt(1+x^(2))-1)/(x)]

tan^(-1)(x+sqrt(1+x^(2)))=

Differentiate tan^(-1) ((sqrt(1+x^(2))-1)/(x)) w.r.t. tan^(-1) ((x)/(sqrt(1-x^(2)))) .

Differentiate tan^(-1)((1+2x)/(1-2x))w*r.t sqrt(1+4x^(2))tan^(-1)((sqrt(1+x^(2))-1)/(x)) with respect to tan^(-1)(x)

If: tan^(-1) ((sqrt(1 + x^2)-1)/(x)) = 4 then : x =

If tan^(-1)(sqrt(1+x^(2))-1)/x=4^(0) , then

If "tan"^(-1)(sqrt(1+x^(2))-1)/x=4^(@) then

tan[2Tan^(-1)((sqrt(1+x^(2))-1)/x)]=

The derivative of Tan ^(-1)"" (sqrt(1 + x ^(2))-1)/(x) w.r.t. Tan ^(-1) "" (2x sqrt(1-x ^(2)))/(1 - 2 x ^(2))at x =0 is