15*(1)/(tan^(-1)((x)/(sqrt(a^(2)-x^(2)))))

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)))) .

the derivation of tan ^(-1)((sqrt(1+x^(2))-1)/(x)) with respect to tan^(-1)((2x sqrt(1-x^(2)))/(1-2x^(2)))

Differentiate tan^(-1)((x)/(sqrt(1-x^(2)))) with respect to sin^(-1)(2x sqrt(1-x^(2))), if -(1)/(sqrt(2))

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