Sinus, Cosinus, Tangens sin(α)=HypothenuseGegenkathete cos(α)=HypothenuseAnkathete tan(α)=AnkatheteGegenkathete sin−1(HypothenuseGegenkathete)=α cos−1(HypothenuseAnkathete)=α tan−1(AnkatheteGegenkathete)=α