Выразите в градусах величину угла,радианная мера которого равна: -пи/2,-пи/12,-3пи/4,-5пи/6

Лебедев Дмитрий Сергеевич

Учитель математики

Проверено учителем

Углы π/2negative pi / 2, π/12negative pi / 12, -3π/4negative 3 pi / 4 и -5π/6negative 5 pi / 6 в градусной мере равны -90negative 90 raised to the composed with power, -15negative 15 raised to the composed with power, -135negative 135 raised to the composed with power и -150negative 150 raised to the composed with power соответственно. ️ Шаг 1: Определение формулы перевода Для перевода величины угла из радианной меры в градусную используется соотношение, основанное на том, что развернутый угол πpi радиан равен 180180 raised to the composed with power. Формула перехода выглядит следующим образом: α=αrad180πalpha raised to the composed with power equals alpha sub r a d end-sub center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction ️ Шаг 2: Последовательное вычисление значений Подставим каждое заданное значение в формулу и сократим множитель πpi:

  1. Для угла π2negative the fraction with numerator pi and denominator 2 end-fraction :
    π2180π=1802=-90negative the fraction with numerator pi and denominator 2 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals negative the fraction with numerator 180 raised to the composed with power and denominator 2 end-fraction equals negative 90 raised to the composed with power Для угла π12negative the fraction with numerator pi and denominator 12 end-fraction :
    π12180π=18012=-15negative the fraction with numerator pi and denominator 12 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals negative the fraction with numerator 180 raised to the composed with power and denominator 12 end-fraction equals negative 15 raised to the composed with power Для угла 3π4negative the fraction with numerator 3 pi and denominator 4 end-fraction :
    3π4180π=31804=-345=-135negative the fraction with numerator 3 pi and denominator 4 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals negative the fraction with numerator 3 center dot 180 raised to the composed with power and denominator 4 end-fraction equals negative 3 center dot 45 raised to the composed with power equals negative 135 raised to the composed with power Для угла 5π6negative the fraction with numerator 5 pi and denominator 6 end-fraction :
    5π6180π=51806=-530=-150negative the fraction with numerator 5 pi and denominator 6 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals negative the fraction with numerator 5 center dot 180 raised to the composed with power and denominator 6 end-fraction equals negative 5 center dot 30 raised to the composed with power equals negative 150 raised to the composed with power

Ответ: Величины углов составляют: -90negative 90 raised to the composed with power, -15negative 15 raised to the composed with power, -135negative 135 raised to the composed with power, -150negative 150 raised to the composed with power. Нужно ли вам перевести обратно из градусов в радианы другие значения или разобрать построение этих углов на единичной окружности?

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