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oxoxo11
@oxoxo11
June 2022
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Помогите алгебра 10 класс.
1)accos(-1)-arccoa1/2-3arccos(-√3/2)
2)arccos(sin 2П/3)
3)ctg(accos(-1/2))
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polinamoskva2003
1)=п-п/3-3(п-п/6)=п-п/3-3*5п/6=2п/3-5п/2=4п/6-15п/6=-11п/6.
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polinamoskva2003
2)=arccos(sin(п-п/3)=arccos(sinп/3)= arccos√3/2=п/6.
polinamoskva2003
3)ctg(п-п/3)=-ctg п/3= - √3
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