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+up::[[application]] 
+title::"$f: E^{2} \to \mathbf{K}$ telle que $\forall (u, v)\in E^{2}, \quad f((u,v)) = f((v, u))$"
+#maths
+
+---
+
+> [!definition] application symétrique
+> Soit $E$ un $\mathbf{K}$-[[espace vectoriel]]
+> Une [[application]] $f$ de $E^{2} \to \mathbf{K}$ est _symétrique_ ssi $\forall (u, v)\in E^{2}, \quad f((u,v)) = f((v, u))$ (elle commute)
+^definition