Предмет: Математика, автор: Полинка0613

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С решением если можно

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Автор ответа: kseyrane
1
sinπ/6=1/2,
cosπ/3=1/2,
tgπ/4=1,
ctgπ/4=1,
подставляем значения в наше выражение и получаем:
1/2+1/2+1-1=2/2=1
Полинка0613: спасибо
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