Photos 2 SIN Α COS Α

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2 sin α cos α. Sin2𝛼− 2sin𝛼cos𝛼− 1. 2sin2(α) =1–cos(2α ). Cos²(α) - sin²(α). 2cos(2α).
Sin2𝛼− 2sin𝛼cos𝛼− 1. 2sin2(α) =1–cos(2α ). Cos²(α) - sin²(α). 2cos(2α).

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