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zaxscdvf32885p7d5xw
@zaxscdvf32885p7d5xw
March 2022
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Какие из выражений верны
A)
cos170° · cos10° − sin170° · sin10° = −1
C)
cos2β·cosβ +sin2β·sinβ = cos3β
D)
cos(α − β) = cosαcosβ + sinαsinβ
E)
sin73° · cos13° − cos73° · sin13° = 0,5
G)
sinγ · cosγ + cosγ · sinγ = sin2γ
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zaxscdvf32885p7d5xw
March 2022 | 0 Ответы
pamagite iz tochki r provedeny k okruzhnosti kasatelnaya pc 12 m i sekushaya
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