October 2021 0 15 Report
2. Найдите острый угол х, если: 1) sinx = Cos40°; 2) COSx = sin76°; 3) tgx = ctg56°; 4) ctgx = tg16°.
3. Углы А и В - острые углы прямоугольного треугольника. Найдите
sin B и cos B, если соѕА = 0,6.​
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