Images TG 2T

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Tg 2t. 2cos2x. Cos2x+cos4x+cos6x. Cos2x+cos^2x=0. Cos 4 2x 3cos4x + 2.
2cos2x. Cos2x+cos4x+cos6x. Cos2x+cos^2x=0. Cos 4 2x 3cos4x + 2.

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