cos(x)
----------------
_____________
/ 2
\/ 1 - sin (x)
$$\frac{\cos{\left(x \right)}}{\sqrt{- \sin^{2}{\left(x \right)} + 1}}$$
/ 2 \
| cos (x) |
|-1 + -----------|*sin(x)
| 2 |
\ 1 - sin (x)/
-------------------------
_____________
/ 2
\/ 1 - sin (x)
$$\frac{\left(\frac{\cos^{2}{\left(x \right)}}{- \sin^{2}{\left(x \right)} + 1} - 1\right) \sin{\left(x \right)}}{\sqrt{- \sin^{2}{\left(x \right)} + 1}}$$
/ 2 2 2 2 \
| cos (x) 3*sin (x) 3*cos (x)*sin (x)|
|-1 + ----------- - ----------- + -----------------|*cos(x)
| 2 2 2 |
| 1 - sin (x) 1 - sin (x) / 2 \ |
\ \1 - sin (x)/ /
-----------------------------------------------------------
_____________
/ 2
\/ 1 - sin (x)
$$\frac{\left(\frac{3 \sin^{2}{\left(x \right)} \cos^{2}{\left(x \right)}}{\left(- \sin^{2}{\left(x \right)} + 1\right)^{2}} - \frac{3 \sin^{2}{\left(x \right)}}{- \sin^{2}{\left(x \right)} + 1} + \frac{\cos^{2}{\left(x \right)}}{- \sin^{2}{\left(x \right)} + 1} - 1\right) \cos{\left(x \right)}}{\sqrt{- \sin^{2}{\left(x \right)} + 1}}$$