Выразите в градусной мере величины углов п/3,п/2, 5п/36,2п/3, 3п/4, - п/9.

Лебедев Дмитрий Сергеевич

Учитель математики

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Величины данных углов в градусной мере составляют: 60,90,25,120,135,-2060 raised to the composed with power comma 90 raised to the composed with power comma 25 raised to the composed with power comma 120 raised to the composed with power comma 135 raised to the composed with power comma negative 20 raised to the composed with power. 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. Таким образом, чтобы найти значение в градусах, необходимо умножить значение в радианах на коэффициент 180πthe fraction with numerator 180 raised to the composed with power and denominator pi end-fraction : α=αrad180πalpha raised to the composed with power equals the fraction with numerator alpha sub r a d end-sub center dot 180 raised to the composed with power and denominator pi end-fraction 2. Вычисление значений углов Подставим каждое из заданных значений в формулу и произведем сокращение на πpi:

  • Для π3the fraction with numerator pi and denominator 3 end-fraction :
    π3180π=1803=60the fraction with numerator pi and denominator 3 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals the fraction with numerator 180 raised to the composed with power and denominator 3 end-fraction equals 60 raised to the composed with power Для π2the fraction with numerator pi and denominator 2 end-fraction :
    π2180π=1802=90the 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 the fraction with numerator 180 raised to the composed with power and denominator 2 end-fraction equals 90 raised to the composed with power Для 5π36the fraction with numerator 5 pi and denominator 36 end-fraction :
    5π36180π=518036=55=25the fraction with numerator 5 pi and denominator 36 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals the fraction with numerator 5 center dot 180 raised to the composed with power and denominator 36 end-fraction equals 5 center dot 5 raised to the composed with power equals 25 raised to the composed with power Для 2π3the fraction with numerator 2 pi and denominator 3 end-fraction :
    2π3180π=21803=260=120the fraction with numerator 2 pi and denominator 3 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals the fraction with numerator 2 center dot 180 raised to the composed with power and denominator 3 end-fraction equals 2 center dot 60 raised to the composed with power equals 120 raised to the composed with power Для 3π4the fraction with numerator 3 pi and denominator 4 end-fraction :
    3π4180π=31804=345=135the 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 the fraction with numerator 3 center dot 180 raised to the composed with power and denominator 4 end-fraction equals 3 center dot 45 raised to the composed with power equals 135 raised to the composed with power Для π9negative the fraction with numerator pi and denominator 9 end-fraction :
    π9180π=1809=-20negative the fraction with numerator pi and denominator 9 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 9 end-fraction equals negative 20 raised to the composed with power

Ниже представлена визуализация расположения этих углов на тригонометрическом круге. Ответ Углы в градусной мере равны: π3=60the fraction with numerator pi and denominator 3 end-fraction equals 60 raised to the composed with power , π2=90the fraction with numerator pi and denominator 2 end-fraction equals 90 raised to the composed with power , 5π36=25the fraction with numerator 5 pi and denominator 36 end-fraction equals 25 raised to the composed with power , 2π3=120the fraction with numerator 2 pi and denominator 3 end-fraction equals 120 raised to the composed with power , 3π4=135the fraction with numerator 3 pi and denominator 4 end-fraction equals 135 raised to the composed with power и π9=-20negative the fraction with numerator pi and denominator 9 end-fraction equals negative 20 raised to the composed with power . Требуется ли вам помощь с обратным переводом из градусов в радианы или вычислениями тригонометрических функций для этих углов?

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