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Pochkastrausa
@Pochkastrausa
October 2021
2
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Помогите решить срочно!!!
Cos (60 градусов - альфа) + cos (60 градусов + альфа)
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dhjejdj
=cos60cosa+sin60sina+cos60cosa-sin60sina=2cos60sina=2*1/2*cosa=cosa
2 votes
Thanks 3
nastenka3321
Решение в приложенииии
2 votes
Thanks 2
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