int2.quad cos^(-1)((1-x^(2))/(1+x^(2)))

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) =

int cos^(-1)((1-x^(2))/(1+x^(2)))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)= intTan^(-1)((2x)/(1-x^(2)))dx then the value of I_(1)+I_(2)-I_(3)=

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

int(x+cos^(-1)x)/(sqrt(1-x^(2)))dx

int(1)/(cos^(-1)x.sqrt(1-x^(2)))dx=

int(1)/(cos^(-1)x.sqrt(1-x^(2)))dx=

int(1+cos^(2)(x))/(1+cos(2x))dx

" 2."int x*cos^(-1)x*dx

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