10/ (sin (-33 п/4) cos (21 п/4)

10/ (sin (-33 п/4) cos (21 п/4)=-10 -20 -20-=-=-=sin (33 п/4) cos (21 п/4) sin (54 п/4)+sin (12 п/4) sin (24+3) п/2)+sin (2 п + п) -20 -20 -20-=-=-=20sin (12 п +3 п/2)+sinп sin (3 п/2) -1