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Тригонометриялық формула� ...

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  • ctg(α+β)
  • sin²α+cos²α
    1
  • tg(α-β)
  • Cos(α+β)
    cosαcosβ-sinαsinβ
  • sin(α+β)
    sinαcosβ+cosαsinβ
  • Cos(α-β)
    cosαcosβ+sinαsinβ
  • sin(α-β)
    sinαcosβ-cosαsinβ
  • tg(α+β)
  • ctg(α-β)
  • 1+tg²α
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