Ответ:
CosП/6×Cos2x+SinП/6×Sin2x=корень3/2×Cos2x+1/2×Sin2x=3×Cos2x+Sin2x/2
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Ответ:
CosП/6×Cos2x+SinП/6×Sin2x=корень3/2×Cos2x+1/2×Sin2x=3×Cos2x+Sin2x/2