30*sec^(-1)((1+x^(2))/(1-x^(2)))

If y=sin^(-1)((2x)/(1+x^(2)))+sec^(-1)((1+x^(2))/(1-x^(2))),0

sec^(-1)((x^(2)+1)/(x^(2)-1))

sec^(-1)((1)/(sqrt(1-x^(2))))

int e^(tan^(-1)x)/(1+x^(2))[(sec^(-1) sqrt(1+x^(2)))^(2)+ cos^(-1) ((1-x^(2))/(1+x^(2)))]dx, x gt 0

If y = sin^(-1) ((2x)/(1 + x^2)) + sec^(-1) ((1 + x^2)/(1 - x^2)) , prove that (dy)/(dx) = 4/(1 + x^2) , 0 < x < 1

sec^(-1)((1+tan^(2)x)/(1-tan^(2)x))

If y=sin^(-1)((2x)/(1+x^2))+sec^(-1)((1+x^2)/(1-x^2)), 0

Evaluate: int(e^tan^-1(x))/((1+x^2))[(sec^(-1)sqrt(1+x^2))^2+cos^(-1)((1-x^2)/(1+x^2))]dx(x >0)dot