Bonjour
Un nouvel exo de calcul :
https://www.cjoint.com/data/JJkmgDrM1nf_exo1-1.png
Voici ce que j'ai trouvé pour la (a) :
\(\vec{A}=\begin{pmatrix}
\frac{\partial \Phi}{\partial y}.\frac{\partial \Psi}{\partial z}-\frac{\partial \Phi}{\partial z}.\frac{\partial \Psi}{\partial y}\\-\frac{\partial \Phi}{\partial x}.\frac{\partial \Psi}{\partial z}+\frac{\partial \Phi}{\partial z}.\frac{\partial \Psi}{\partial x}
\\\frac{\partial \Phi}{\partial x}.\frac{\partial \Psi}{\partial y}-\frac{\partial \Phi}{\partial y}.\frac{\partial \Psi}{\partial x}
\end{pmatrix}\)
Est ce que c'est correct ?
merci