Предмет: Алгебра, автор: Makarena2016

cos4x=√32 как решать помогите плиз )

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Автор ответа: Эксперт5

0

$cos4x= sqrt{3}/2 \ 4x=бarccos sqrt{3}/2+2 pi n, nin Z \ 4x=б pi /6+2 pi n, nin Z \ x=б pi /24+ pi n/2, nin Z$

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