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JeonJungKook127
@JeonJungKook127
July 2022
1
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найдите значение выражения: cos²30°+sin²52°+cos²52°
Срочно!!
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yulenka00
Sin^2(x)+cos^2(x)=1 - основное тригонометрическое тождество
((корень из3)/2)^2+1=3/4 + 1=1.75
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JeonJungKook127
спасибо
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((корень из3)/2)^2+1=3/4 + 1=1.75