Предмет: Алгебра, автор: Hooooyeonyyy

Найдите значение выражения.Срочно!​

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Ответы

Автор ответа: erdemtugarinov10
2

Ответ:

tg (1095°)= tg (15°+6*180°)=tg(15°)

ctg(975°)=ctg (6*180°-90°-15°)=ctg(-90°-15°)=tg(15°)

tg(-195°)=tg(-15°-180°)=tg(-15°)=-tg(15°)

2*tg(1095°)+ctg(975°)-tg(-195°)=2*tg(15°)+tg(15°)+tg(15°)=4*tg(15°)=4*(2-√3)=

=8-4√3

Hooooyeonyyy: Благодарю
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