14int tan^(-1)(2x)/(1-x^(2))dx(-1

Evaluate: int tan^(-1)((2x)/(1-x^(2)))dx

Evaluate int tan^(-1)((2x)/(1-x^(2))) dx

If I = int tan^(-1)((2x)/(1-x^(2)))*dx then I-2x*tan^(-1)x =

Evaluate int"tan"^(-1)((2x)/(1-x^(2)))dx

int tan^(-1)((1)/(1-x+x^(2)))dx

int (tan^(-1)x)^(2)/(1+x^2)dx

int(tan^(-1)x)/(x^(2))*dx

int(x tan^(-1)x^(2))/(1+x^(4))dx

If I_(1) int sin^(-1) ((2x)/(1 +x^(2)) ) dx , I_(2) = int cos^(-1) ((1-x^(2))/(1 +x^(2)) ) dx , I_(3) = int tan^(-1) ((2x)/(1 - x^(2)) ) dx , then I_(1) + I_(2) - I_(3) =