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Автор - Dagon05

Помогите решить , 1 и 2 номер

Ответ

Автор - максимус24
1. a)sin0=0 cos0=1 б) sin3п/4=корень из 2/2 cos3п/4=-корень из 2/2
в)sin7п/4=-корень из 2/2 cos7п/4=корень из 2/2 г)sin-2п/3=-корень из 3/2 cos2п/3=1/2
2. Обозначь углы от 135 до 225, а t соответствует углам (3п/4+2пN;5п/4+2пN)

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