cours/Formules d'Euler.md

sr-due: 2023-09-25 sr-interval: 257 sr-ease: 302 up::MOC trigonométrie #maths/trigonométrie #review

cosinus

\cos(x) = \dfrac{e^{ix}+e^{-ix}}{2}

!formule_euler_cos.excalidraw

sinus

\sin(x) = \dfrac{e^{ix} - e^{-ix}}{2i}

!formule_euler_sin.excalidraw

exponentielle

e^{i\theta} = \cos(\theta) + i\sin(\theta)