(1.0 - x^2)^0.5*cos(x)/(1.0 + sin(x)^2) - x*(1.0 - x^2)^(-0.5)*atan(sin(x))
________ ________ ________ ________ / 2 / 2 2 / 2 / 2 2 - \/ 1 - x *cos(x) + x*\/ 1 - x *atan(sin(x)) + x *\/ 1 - x *cos(x) + x*\/ 1 - x *sin (x)*atan(sin(x)) -------------------------------------------------------------------------------------------------------------- / 2 \ / 2\ \1 + sin (x)/*\-1 + x /
/ 2\ / 2 \ \1 - x /*cos(x) - x*\1 + sin (x)/*atan(sin(x)) ---------------------------------------------- ________ / 2 \ / 2 \1 + sin (x)/*\/ 1 - x
/ 2\ / 2 \ \1 - x /*cos(x) - x*\1 + sin (x)/*atan(sin(x)) ---------------------------------------------- ________ / 2 \ / 2 \1 + sin (x)/*\/ 1 - x
________ / 2 x*atan(sin(x)) 2*\/ 1 - x *cos(x) - -------------- - -------------------- ________ -3 + cos(2*x) / 2 \/ 1 - x
/ 2 2 \ -\-cos(x) + x*atan(sin(x)) + x *cos(x) + x*sin (x)*atan(sin(x))/ ----------------------------------------------------------------- ___________________ / 2 \ \/ -(1 + x)*(-1 + x) *\1 + sin (x)/
/ 2 2 \ -\-cos(x) + x*atan(sin(x)) + x *cos(x) + x*sin (x)*atan(sin(x))/ ----------------------------------------------------------------- ________ ________ / 2 / 2 2 \/ 1 - x + \/ 1 - x *sin (x)