Funciones Trigonométricas#

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Fig. 20 Rogawski Calculus, Second Edition Copyright © 2012 W. H. Freeman and Company#

\[ \sin\theta =\frac{b}{c}=\frac{\text{opuesto}}{\text{hipotenusa}},\qquad \cos\theta =\frac{a}{c}=\frac{\text{adyacente}}{\text{hipotenusa}} \]

Círculo unidad#

fishy

Fig. 21 Rogawski Calculus, Second Edition Copyright © 2012 W. H. Freeman and Company#

Propiedades

\[ \sin(-\theta)=-\sin\theta,\qquad \cos(-\theta)=\cos(\theta) \]