![tab1c tab1c](http://wordpress.callac.online/wp-content/uploads/2006/10/jpg_tab1c-3.jpg)
Voici son code :
\begin{center} \begin{variations} x &\mI& &\pI \\ \filet f'(x) & & + & \\ \filet \m{f(x)} &\mI&\c &\h{\pI}\\ \end{variations} \end{center}
![tab1ic tab1ic](http://wordpress.callac.online/wp-content/uploads/2006/10/jpg_tab1ic-3.jpg)
Voici son code :
\begin{center} \begin{variations} x & & 0 & &\pI \\ \filet f'(x) &\bg& & + & \\ \filet \m{f(x)}&\bg&\mI&\c &\h{\pI}\\ \end{variations} \end{center}
![tab1d tab1d](http://wordpress.callac.online/wp-content/uploads/2006/10/jpg_tab1d-3.jpg)
Voici son code :
\begin{center} \begin{variations} x &\mI & &\pI\\ \filet f'(x) & & - & \\ \filet \m{f(x)}&\h{\pI}&\d &\mI\\ \end{variations} \end{center}
![tab1id tab1id](http://wordpress.callac.online/wp-content/uploads/2006/10/jpg_tab1id-3.jpg)
Voici son code :
\begin{center} \begin{variations} x & & 0 & &\pI\\ \filet f'(x) &\bg& & - & \\ \filet \m{f(x)}&\bg&\h{\pI}&\d &\mI\\ \end{variations} \end{center}