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12.1: Trigonometría

Última actualización

30 oct 2022
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- 12: Fórmulas matemáticas
- 12.2: Operadores vectoriales

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$e ^ { j \theta } = \cos \theta + j \sin \theta \nonumber$

$\cos \theta = \frac { 1 } { 2 } \left( e ^ { j \theta } + e ^ { - j \theta } \right) \nonumber$

$\sin \theta = \frac { 1 } { j 2 } \left( e ^ { j \theta } - e ^ { - j \theta } \right) \nonumber$

$\cos ^ { 2 } \theta = \frac { 1 } { 2 } + \frac { 1 } { 2 } \cos 2 \theta \nonumber$

$\sin ^ { 2 } \theta = \frac { 1 } { 2 } - \frac { 1 } { 2 } \cos 2 \theta \nonumber$

$\sin (a \pm b)=\sin a \cos b \pm \cos a \sin b \nonumber$

$\cos (a \pm b)=\cos a \cos b \mp \sin a \sin b \nonumber$

Funciones trigonométricas hiperbólicas:

$\sinh \theta=\frac{1}{2}\left(e^{+\theta}-e^{-\theta}\right) \nonumber$

$\cosh \theta=\frac{1}{2}\left(e^{+\theta}+e^{-\theta}\right) \nonumber$

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