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Cos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2x
Cos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2x
Cos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2xCos x cos2x