Общий знаменатель sin(2)*(pi-t)+sin(2)*(pi/2-t)/sin(pi-t)

$$frac{left(- t + frac{pi}{2}right) sin{left (2 right )}}{sin{left (- t + pi right )}} + left(- t + piright) sin{left (2 right )}$$

$$frac{left(- t + frac{pi}{2}right) sin{left (2 right )}}{sin{left (t right )}} + left(- t + piright) sin{left (2 right )}$$

2.85664211604366 – 0.909297426825682*t + 0.909297426825682*(1.5707963267949 – t)/sin(pi – t)

$$frac{1}{2 sin{left (t right )}} left(- 2 t sin{left (2 right )} sin{left (t right )} – 2 t sin{left (2 right )} + 2 pi sin{left (2 right )} sin{left (t right )} + pi sin{left (2 right )}right)$$

$$frac{sin{left (2 right )}}{2 sin{left (t right )}} left(- 2 t + 2 left(- t + piright) sin{left (t right )} + piright)$$

(pi – 2*t + 2*(pi – t)*sin(t))*sin(2)
————————————-
2*sin(t)

$$frac{sin{left (2 right )}}{2 sin{left (t right )}} left(- 2 t + 2 left(- t + piright) sin{left (t right )} + piright)$$

$$- t sin{left (2 right )} – frac{1}{sin{left (t right )}} left(t sin{left (2 right )} – frac{pi}{2} sin{left (2 right )}right) + pi sin{left (2 right )}$$

-(-pi + 2*t – 2*pi*sin(t) + 2*t*sin(t))*sin(2)
———————————————–
2*sin(t)

$$- frac{sin{left (2 right )}}{2 sin{left (t right )}} left(2 t sin{left (t right )} + 2 t – 2 pi sin{left (t right )} – piright)$$

-pi*sin(2) + 2*t*sin(2)
pi*sin(2) – t*sin(2) – ———————–
2*sin(pi – t)

$$- t sin{left (2 right )} – frac{2 t sin{left (2 right )} – pi sin{left (2 right )}}{2 sin{left (- t + pi right )}} + pi sin{left (2 right )}$$

/ pi t
|pi – t + ——– – ——|*sin(2)
2*sin(t) sin(t)/

$$left(- t – frac{t}{sin{left (t right )}} + pi + frac{pi}{2 sin{left (t right )}}right) sin{left (2 right )}$$

/pi
|– – t|*sin(2)
2 /
(pi – t)*sin(2) + —————
sin(t)

$$frac{left(- t + frac{pi}{2}right) sin{left (2 right )}}{sin{left (t right )}} + left(- t + piright) sin{left (2 right )}$$