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MrNimphetamine
@MrNimphetamine
August 2022
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Упростите выражение: sin^2 x/2 - cos^2 x/2
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m11m
Verified answer
-(cos² ˣ/₂ - sin² ˣ/₂) = - cos(2 * ˣ/₂) = -cosx
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Thanks 1
MrNimphetamine
Такого ответа нет (
m11m
-cosx
MrNimphetamine
Почему так?
m11m
Все написано в решении. Обновите страницу.
MrNimphetamine
Спасибо
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Answers & Comments
Verified answer
-(cos² ˣ/₂ - sin² ˣ/₂) = - cos(2 * ˣ/₂) = -cosx