diff --git a/latex/contents/annexes.tex b/latex/contents/annexes.tex
index 0fb729c..df08436 100644
--- a/latex/contents/annexes.tex
+++ b/latex/contents/annexes.tex
@@ -14,12 +14,124 @@
 \pagenumbering{Alph}
 \section{Annexe}
 
-\subsection{Question 1}
-
-
-
-
-
+\subsection{Question 2}
+\vspace*{-2em}
+\begin{align*}
+	\left\{\begin{aligned}
+		x_1 &\approx \phi^Tx_{1d}(t) \\
+		x_2 &\approx \phi^Tx_{2d}(t)
+	\end{aligned}\right. & &
+	\left\{\begin{aligned}
+		e_1 &\approx \phi^Te_{1d}(t) \\
+		e_2 &\approx \phi^Te_{2d}(t)
+	\end{aligned}\right.
+\end{align*}
+
+En utilisant la première ligne de l'équation 1, on trouve :
+
+\begin{equation*}
+	\int\phi(\zeta)d\zeta\times\phi^T\dot{x_{1d}} = \int\phi(\zeta)d\zeta\times\frac{\partial^2}{\partial\zeta^2} = \ddot{\phi}(\zeta)^Te_{2d}
+\end{equation*}
+
+\begin{equation}
+	\underbrace{\int_{0}^{L}\phi(\zeta)\phi(\zeta)^Td\zeta}_\text{E}\times\dot{x_{1d}} = \left(\int_{0}^{L}\phi(\zeta)\ddot{\phi}(\zeta)d\zeta\right)e_{2d}
+\end{equation}
+
+On applique plusieurs fois de l’intégration par partie (IPP) :
+
+\begin{equation*}
+	\begin{aligned} 
+		\int_{0}^{L}\phi(\zeta)\ddot{\phi}(\zeta)^T d\zeta &= [\phi(\zeta)\dot{\phi}(\zeta)^T]_{0}^{L} - \int_{0}^{L}\dot{\phi}(\zeta)\dot{\phi}(\zeta)^T d\zeta \\
+		&= \phi(L)\dot{\phi}(L)^T - \underbrace{\phi(0)\dot{\phi}(0)^T }_\text{=0} - \dot{\phi}(L)\phi(L)^T + \underbrace{\dot{\phi(0)}\phi(0)^T }_\text{=0} + \int_{0}^{L} \ddot{\phi}(\zeta)\phi(\zeta)^T d\zeta \\
+		&= \phi(L)\dot{\phi}(L)^T - \dot{\phi}(L)\phi(L)^T + \int_{0}^{L} \ddot{\phi}(\zeta)\phi(\zeta)^T d\zeta = D
+	\end{aligned}
+\end{equation*}
+
+On continue avec ça en remplaçant dans l'équation 2 : $\Rightarrow \boxed{E\dot{x}_{1d} = De_{2d}}$ \\
+
+
+Puis on a dans la deuxième ligne de l'équation 1 : 
+
+\begin{equation*}
+	\begin{aligned}
+		\phi^T(\zeta)\dot{x}_{2d} &= - \frac{\partial^2}{\partial\zeta^2} (\phi(\zeta)^T e_{1d}) - q(\zeta, t) \\
+		\int_{0}^{L} \phi^T(\zeta)d\zeta\times\dot{x}_{2d} &= -e_{1d}\int_{0}^{L}\phi(\zeta)\ddot{\phi}(\zeta)^T d\zeta - \underbrace{\int_{0}^{L}\phi(\zeta)q(\zeta,t)d\zeta}_{=F_{ext}}
+	\end{aligned}
+\end{equation*}
+
+Puis on trouve D :
+
+\begin{equation*}
+	\begin{aligned}
+		& D = \phi(L)\dot{\phi}(L)^T - \phi(L)\dot{\phi}(L)^T + \int_{0}^{L}\ddot{\phi}(\zeta)\phi(\zeta)^Td\zeta \\
+		\Rightarrow & D^T = \dot{\phi}(L)\phi(L)^T - \dot{\phi}(L)\phi(L)^T + \int_{0}^{L}\phi(\zeta)\ddot{\phi}(\zeta)d\zeta \\
+		\Rightarrow & \boxed{\int_{0}^{L}\underbrace{\phi(\zeta)}\ddot{\phi}(\zeta)^Td\zeta} = D^T - \dot{\phi}(L)\phi(L)^T + \phi(L)\dot{\phi}(L)^T \\
+		\Rightarrow & E\dot{x}_{2d} = -e_{1d}D^T + \overbrace{e_{1d}\dot{\phi}(L)\phi(L)^T}^{=0} - e_{1d}\phi(L)\dot{\phi}(L)^T - F_{ext}
+	\end{aligned}
+\end{equation*}
+
+Or on sait que : 
+
+\begin{align*}
+	\Rightarrow\left\{\begin{aligned}
+		\frac{de_1}{d\zeta} = u(t) &\Rightarrow \dot{\phi}(L)^T e_{1d} = u(t) \\
+		e_1 (L,t) = 0 &\Rightarrow \phi(L)^T e_{1d} = 0
+	\end{aligned}\right. & &
+	\Rightarrow & &
+	\boxed{E\dot{x}_{2d} = - e_{1d}D^T - \phi(L)u(t) - F_{ext}}
+\end{align*}
+
+Puis on a ceci :
+
+\begin{align*}
+	\left\{\begin{aligned}
+		y(t) &= -e_2 (L,t) \\
+		e_2 (L,t) &\approx	\phi(L)^T e_{2d} 
+	\end{aligned}\right. & &
+	\Rightarrow & &
+	\boxed{y(t) = -\phi(L)^T e_{2d}}
+\end{align*}
+
+
+\subsection{Question 3}
+On a :
+
+\begin{align*}
+	\left\{\begin{aligned}
+		e_1 = EIx_1 = x_1 &\Rightarrow e_{1d} = x_{1d} \\
+		e_2 = \frac{1}{\rho(\zeta)}x_2 = x_2 &\Rightarrow e_{2d} = x_{2d}
+	\end{aligned}\right. & &
+	\Rightarrow & &
+	\left\{\begin{aligned}
+		E\dot{X}_{1d} &= Dx_{2d} \\
+		E\dot{X}_{2d} &= -D^T x_{1d} - \phi(L)u(t) - 0 \\
+		y &= -\phi(L)^T x_{2d}
+	\end{aligned}\right.
+\end{align*}
+
+Ce qui nous donne :
+
+\begin{equation*}
+	A = \begin{pmatrix}
+		0 & E^{-1}D \\
+		-E^{-1}D^T & 0
+	\end{pmatrix}, \  B = \begin{pmatrix}
+		0 \\
+		-E^{-1}\phi(L)
+	\end{pmatrix}, \ C = \begin{pmatrix}
+		0 & -\phi(L)^T
+	\end{pmatrix},\ pour \ \left\{\begin{aligned}
+	\zeta = L = 1 \\
+	\phi(1) = \begin{pmatrix}
+		0 \\
+		1 \\
+		0 \\
+		0
+	\end{pmatrix}
+	\end{aligned}\right. 
+\end{equation*}
+
+Puis application numérique.
 
 
 
diff --git a/latex/main.pdf b/latex/main.pdf
index fbd9405..3574091 100644
Binary files a/latex/main.pdf and b/latex/main.pdf differ
diff --git a/latex/template/table_des_matieres.tex b/latex/template/table_des_matieres.tex
index a5d101e..1ee15fb 100644
--- a/latex/template/table_des_matieres.tex
+++ b/latex/template/table_des_matieres.tex
@@ -4,4 +4,4 @@
 \newpage
 
 \pagenumbering{arabic} % Numérotation en chiffres romains (i, ii, iii, ...)
-\setcounter{page}{1}1
\ No newline at end of file
+\setcounter{page}{1}
\ No newline at end of file