Решите пожалуйста уравнения)))0 1)3sin x cos x-2 cos 2x=0
2)cos^2 y+4 sin^2 y=2 sin 2y
3)sin 2y+sin y cos y=2 cos 2y
4)2 cos^2 2t+3 sin 4t+4 sin^2 2t=0
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