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nurinadanagul
@nurinadanagul
August 2022
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tg45+sin2 17+cos2 17
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Zhiraffe
По основному тригонометрическому тождеству
sin2 17+cos2 17
=1, Tg45=1. Значит в сумме получим 1+1=2. Ответ: 2.
2 votes
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