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Кириллка20000002
@Кириллка20000002
July 2022
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Синус=0,5. Найти косинус и тангенс
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19арчи94
Воспользуемся формулой
Sin a^2+cos a^2=1, cos a^2=1-sin a^2,
Cos a^2=1-0,25=0,75
Cos a=0.75, cos a=-0,75
Tg a=sin a/cos a
Tg a=0,5/0,75=10/15=2/3
Tg a=0,5/-0,75=-2/3
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Answers & Comments
Sin a^2+cos a^2=1, cos a^2=1-sin a^2,
Cos a^2=1-0,25=0,75
Cos a=0.75, cos a=-0,75
Tg a=sin a/cos a
Tg a=0,5/0,75=10/15=2/3
Tg a=0,5/-0,75=-2/3