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mingyuchan
@mingyuchan
June 2022
1
16
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Докажите тождество:
2cosb + cos3b + cos5b/cos3b + sinbsin2b = 4cos2b
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ВладимирБ
Ответ:
Объяснение:
........................
4 votes
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mingyuchan
Огромное Вам спасибо! ❤️
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