from github to this gitea

Formules d'Euler.md

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+---
+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|1200]]
+
+
+# sinus
+$\sin(x) = \dfrac{e^{ix} - e^{-ix}}{2i}$
+
+![[formule_euler_sin.excalidraw|1050]]
+
+
+# exponentielle
+
+$e^{i\theta} = \cos(\theta) + i\sin(\theta)$
+