Найдите значение выражения:
30√3sin(1020°)
30√3 sin 1020° = 30√3 sin (4П+300°) = 30√3 sin 300° = 30√3 sin (270°+30°) = - 30√3 cos 30° = -30 √3 * (√3/2) = -45
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30√3 sin 1020° = 30√3 sin (4П+300°) = 30√3 sin 300° = 30√3 sin (270°+30°) = - 30√3 cos 30° = -30 √3 * (√3/2) = -45