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

Evaluate: int cos {2 tan^(-1) sqrt((1-x)/(1+x))}dx

int tan^(-1)sqrt(x)dx

int cos(2tan^(-1)sqrt((1-x)/(1+x)))dx" is equal to "" (A) "(1)/(8)(x^(2)-1)+C, " (B) "(x^(2))/(4)+C , " ""(C)" (x)/(2)+C ," "(D) "(x^(2))/(2)+C

int_(0)^(1) sin{2 tan^(-1)sqrt((1+x)/(1-x))}dx=

The value of int_(0)^(1)sin[2tan^(-1)sqrt((1+x)/(1-x))]dx is equal to -

int_0^(1) sin (2 tan^(-1) sqrt((1+x)/(1-x))) dx =