2 cos 2 x 1 0 July 8, 2019 16 32 64 128 2 cos 2 x sin x 1 0 Cos2 x 2 cos x 1 0 2 cos 2 2x cos 2x 1 0 2 cos 2 x 3 cos x 1 0 2 cos 2 x 5 sin x 1 0 2 cos 2x cos x 1 0 2cos 2 4x )- 6cos 2 2x )+ 1 0 2cos 2 2x )- 1 0 4 cos 2 x 1 0 Cos2x sqrt 2 cos pi 2 x )+ 1 0 2cos 2 x 2 cos x 2 1 0 Cos2x sqrt 2 cos 3pi 2 x )- 1 0 ) √2 cos(x/2+3)+ 1 = 0
