-sin(6p-5p/6+√3*-cos(p+p/6)+tg(3p/2+45)= -sin(5p/6)+√3*-cos(p/6)-ctg(45)= -1/2+√3*-√3 /2 -1= -1/2+(-√9/2)-1= -0.5+-3/2)-1=-1/2-1.5-1=-0.5-1.5-1=-2-1=-3