Предмет: Алгебра, автор: Karin2013

1.Решите уравнение.

а)sin t = 1/2

б)cos t = - корень из 3/2

2.вычислите.

а)sin 5П/6

б)cos(-9П/4)

в)tg 5П/4

г)ctg (-П/3)

Ответы

Автор ответа: itsmyli
0
Пока уравнения.

На второй картинке я дорешала первое уравнение с синусом.
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Автор ответа: prostomama1
0
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