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Формули додавання

Тригоном. формули

QuestionAnswer
sіn(α + β) = sinα*cosβ + cosα*sinβ
sіn (α – β) = sinα*cosβ-cosα*sinβ
соs (α + β) = cosα*cosβ–sinα*sinβ
соs (α – β) = cosα*cosβ+sinα*sinβ
tg(α + β) = (tgα +tg β)/(1-tgα *tg β)
tg(α - β) = (tgα -tg β)/(1+tgα *tg β)
Created by: 1125969591097973
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