Photos 2 SIN Α COS Α

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2 sin α cos α. Cos (α ± β ) =. Sin (α ± β ) =. Формулы TG(Α+Β) И CTG(Α+Β), TG(Α-Β) И CTG(Α-Β).. Cos²(α) - sin²(α).
Cos (α ± β ) =. Sin (α ± β ) =. Формулы TG(Α+Β) И CTG(Α+Β), TG(Α-Β) И CTG(Α-Β).. Cos²(α) - sin²(α).

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