/ 2 2 2 2 2 \
| 3*sin(x) 6*cos (x)*sin(x) 2*cos (x)*atan(sin(x)) 6*sin (x)*atan(sin(x)) 8*cos (x)*sin (x)*atan(sin(x))|
2*|-atan(sin(x)) - ----------- - ---------------- - ---------------------- + ---------------------- + ------------------------------|*cos(x)
| 2 2 2 2 2 |
| 1 + sin (x) / 2 \ 1 + sin (x) 1 + sin (x) / 2 \ |
\ \1 + sin (x)/ \1 + sin (x)/ /
--------------------------------------------------------------------------------------------------------------------------------------------
2
1 + sin (x)