cos(п/2-2x)+sinx=0
sin2x+sinx=0
2sinxcosx+sinx=0
sinx(2cosx+1)=0
sinx=0 2cosx+1=0
x=пk x= +-2п/3 + 2пm
-3п/2<=пk<=-п2 -3п/2<=2п/3+2пm<=-п2 -3п/2<=-2п/3+2пr<=-п2
-3/2<=k<=-1/2 -13/12<=m<=-7/12 -5/12<=r<=1/12
k=-1, x=-п m=-1, x=-4п/3 r=0, x=-2п/3
cos(п/2-2x)+sinx=0
sin2x+sinx=0
2sinxcosx+sinx=0
sinx(2cosx+1)=0
sinx=0 2cosx+1=0
x=пk x= +-2п/3 + 2пm
-3п/2<=пk<=-п2 -3п/2<=2п/3+2пm<=-п2 -3п/2<=-2п/3+2пr<=-п2
-3/2<=k<=-1/2 -13/12<=m<=-7/12 -5/12<=r<=1/12
k=-1, x=-п m=-1, x=-4п/3 r=0, x=-2п/3