Предмет: Алгебра, автор: petrenkonastya

Все корни уравнения cos2a=-√3/2 образуют множество. Найти множество

Ответы

Автор ответа: saxila15

2

щас напишу,решаю,минутку подожди

saxila15: 2а=+-5пи/6+2пи*к

saxila15: а=+-5пи/12+пи*к

saxila15: вот ответ

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