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ivolkov1996
@ivolkov1996
June 2022
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найдите синус α, если косинус α=0,6 и ≤α≤2π. решите пожалуйста
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Sro444noo
Verified answer
косинус α=0,6
sin^2 a = 1 - cos^2 a
sin a = √
1 - cos^2 a = √1 - 0.6^2 = √ 0.64 = -/+ 0.8
если 0≤α≤2π., то SIN (+)
ответ
синус α = 0.8
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Verified answer
косинус α=0,6sin^2 a = 1 - cos^2 a
sin a = √ 1 - cos^2 a = √1 - 0.6^2 = √ 0.64 = -/+ 0.8
если 0≤α≤2π., то SIN (+)
ответ синус α = 0.8