упростить! 1) cos2x/sinx-cosx 2) 8sin2cos2xsin4x

1) cos(2x)/(sin(x)-cos(x)) = (cosx - sinx)/(sin(x)-cos(x)) = -(sin(x)-cos(x))(sin(x)+cos(x))/(sin(x)-cos(x)) = -sin(x)-cos(x)

2) 8sin(2x)cos(2x)sin(4x) = 4*sin(4x)*sin(4x) = 4sin(4x)