t=pi/6(2x-3) sint=-1/2 t1=-pi/6+2pin t2=7pi/6+2pi*n
pi/6(2x-3)=-pi/6+2pi*n умножим на 6/.pi =>2x-3=-pi/6*6/pi+2pi*n*6/pi=-1+2*n*6=-1+12*n 2x=3-1+12*n=2+12*n x1=1+6*n n (- Z
pi/6(2x-3)=7pi/6+2pi*n 2x-3=7pi/6*6/pi+2pi*n*6/pi=7+12*n 2x=3+7+12n=10+12n x=5+6n n(- Z