X 3 1 cos2x

X 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2x
X 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2x
X 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2xX 3 1 cos2x