Images COS2X TG

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Cos2x tg. Sin5x+cos4x=0. 2sin^2 (2x) + 3cos 4x - 4 = 5sin 4x. Sin x - 2 cos x = 3cos^2 x-2sin 2x -5. Cos2x/4-sin2x/4 sin 3p/2-x.
Sin5x+cos4x=0. 2sin^2 (2x) + 3cos 4x - 4 = 5sin 4x. Sin x - 2 cos x = 3cos^2 x-2sin 2x -5. Cos2x/4-sin2x/4 sin 3p/2-x.

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