Sin X*cos X=-√2/2*sinX
Sin X*cos X+√2/2*sinX=0
Sin X*(cos X+√2/2)=0
sin X=0 cos X+√2/2=0
x=П + Пn cos X=_-√2/2
X=±3П/4
Sin X*cos X=-√2/2*sinX
Sin X*cos X+√2/2*sinX=0
Sin X*(cos X+√2/2)=0
sin X=0 cos X+√2/2=0
x=П + Пn cos X=_-√2/2
X=±3П/4