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rokossovskaya
@rokossovskaya
December 2021
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УМОЛЯЮ, ПОМОГИТЕ!!! НУЖНО ОЧЕНЬ СРОЧНО!
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IrkaShevko
Verified answer
Cos(-5π/3) + cos(π/3) + cosπ + cos(-π/4) =
0,5 + 0,5 - 1 + √2/2 = √2/2
Ответ: 1) √2/2
2 votes
Thanks 2
kratgv
Verified answer
Cos(-5π/3) + cos(π/3) + cosπ + cos(-π/4) = cos 5π/3 + cos(π/3) + cosπ + cos π/4 = 0,5 + 0,5 - 1 + √2/2 = √2/2
1 votes
Thanks 0
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Answers & Comments
Verified answer
Cos(-5π/3) + cos(π/3) + cosπ + cos(-π/4) =0,5 + 0,5 - 1 + √2/2 = √2/2
Ответ: 1) √2/2
Verified answer
Cos(-5π/3) + cos(π/3) + cosπ + cos(-π/4) = cos 5π/3 + cos(π/3) + cosπ + cos π/4 = 0,5 + 0,5 - 1 + √2/2 = √2/2