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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