Images 4 COS 4X

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4 cos 4x. Sin4x cos4x cos4x. Sin4x cos4x cos 2 2x+1/4. Sin4x cos4x cos22x+1/4. Sin4 x + cos4 x = 1.
Sin4x cos4x cos4x. Sin4x cos4x cos 2 2x+1/4. Sin4x cos4x cos22x+1/4. Sin4 x + cos4 x = 1.

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