Выразить в градусах а)1.2пи б) - 5пи/6 в) - 21пи/20 г) 1.4.пи выразить в радианах а) 165 б) -720 в)-540 г)150

Лебедев Дмитрий Сергеевич

Учитель математики

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Для перевода радиан в градусы используется коэффициент 180πthe fraction with numerator 180 raised to the composed with power and denominator pi end-fraction , а для перевода градусов в радианы — коэффициент π180the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction . Полученные значения: 216^\circ, -150^\circ, -189^\circ, 252^\circ для первой части и \frac{11\pi}{12}, -4\pi, -3\pi, \frac{5\pi}{6} для второй. ️ Шаг 1: Перевод из радиан в градусы Для вычисления градусной меры используем формулу n=α180πn raised to the composed with power equals alpha center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction , где αalpha — значение в радианах. а) 1.2π180π=1.2180=2161.2 pi center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals 1.2 center dot 180 raised to the composed with power equals 216 raised to the composed with power б) 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 5 center dot the fraction with numerator 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 в) 21π20180π=-2118020=-219=-189negative the fraction with numerator 21 pi and denominator 20 end-fraction center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals negative 21 center dot the fraction with numerator 180 raised to the composed with power and denominator 20 end-fraction equals negative 21 center dot 9 raised to the composed with power equals negative 189 raised to the composed with power г) 1.4π180π=1.4180=2521.4 pi center dot the fraction with numerator 180 raised to the composed with power and denominator pi end-fraction equals 1.4 center dot 180 raised to the composed with power equals 252 raised to the composed with power ️ Шаг 2: Перевод из градусов в радианы Для вычисления радианной меры используем формулу α=nπ180alpha equals n raised to the composed with power center dot the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction . а) 165π180=165π180=11π12165 raised to the composed with power center dot the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction equals the fraction with numerator 165 pi and denominator 180 end-fraction equals the fraction with numerator 11 pi and denominator 12 end-fraction (сократили на 1515) б) -720π180=720π180=-4πnegative 720 raised to the composed with power center dot the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction equals negative the fraction with numerator 720 pi and denominator 180 end-fraction equals negative 4 pi в) -540π180=540π180=-3πnegative 540 raised to the composed with power center dot the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction equals negative the fraction with numerator 540 pi and denominator 180 end-fraction equals negative 3 pi г) 150π180=150π180=5π6150 raised to the composed with power center dot the fraction with numerator pi and denominator 180 raised to the composed with power end-fraction equals the fraction with numerator 150 pi and denominator 180 end-fraction equals the fraction with numerator 5 pi and denominator 6 end-fraction (сократили на 3030) Ответ: В градусах: а) 216^\circ, б) -150^\circ, в) -189^\circ, г) 252^\circ. В радианах: а) \frac{11\pi}{12}, б) -4\pi, в) -3\pi, г) \frac{5\pi}{6}. Укажите, требуется ли вам разложение этих углов на периоды (например, через 2πk2 pi k) или построение их на тригонометрическом круге?

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