sin(x)/(1.0 - cos(x)) + sin(x)/(1.0 + cos(x))
Рациональный знаменатель
[src](1 - cos(x))*sin(x) + (1 + cos(x))*sin(x)
-----------------------------------------
(1 - cos(x))*(1 + cos(x))
$$\frac{\left(- \cos{\left (x \right )} + 1\right) \sin{\left (x \right )} + \left(\cos{\left (x \right )} + 1\right) \sin{\left (x \right )}}{\left(- \cos{\left (x \right )} + 1\right) \left(\cos{\left (x \right )} + 1\right)}$$
Объединение рациональных выражений
[src] 2*sin(x)
-------------------------
(1 - cos(x))*(1 + cos(x))
$$\frac{2 \sin{\left (x \right )}}{\left(- \cos{\left (x \right )} + 1\right) \left(\cos{\left (x \right )} + 1\right)}$$
$$\frac{2}{\sin{\left (x \right )}}$$
-2*sin(x)
------------
2
-1 + cos (x)
$$- \frac{2 \sin{\left (x \right )}}{\cos^{2}{\left (x \right )} - 1}$$
Тригонометрическая часть
[src]$$\frac{2}{\sin{\left (x \right )}}$$
-2*sin(x)
--------------------------
(1 + cos(x))*(-1 + cos(x))
$$- \frac{2 \sin{\left (x \right )}}{\left(\cos{\left (x \right )} - 1\right) \left(\cos{\left (x \right )} + 1\right)}$$