\begin{exercice}
 Même consigne qu'à l'exercice \RefExercice{1SF4_E_extrema}.
 
 \begin{center}
  \begin{tikzpicture}[general, scale=1]
   \axeX{-1}{2}{1}
   \axeY{-1}{1}{}
   \origine
   \draw [domain=-0.728:1.55, color=A1, smooth] plot(\x,{-(5*(3*(\x)^4-4*(\x)^3))/12});
   \draw (1.5,0.5) [color=A1] node{{\boldmath $\mathcal{C}_{f}$}};
   \end{tikzpicture}
 \end{center}
 
 \setlength{\columnseprule}{0pt}
 \begin{multicols}{3}
  \begin{tikzpicture}[general, scale=0.8]
   \axeX{-1}{1.5}{1}
   \axeY{-1}{1}{}
   \origine
   \draw [domain=-1:1.364, color=J1, smooth] plot(\x,{-(\x-1)*(\x+1.5)^2/3});
   \draw (1.1,0.5) [color=J1] node{{\boldmath $\mathcal{C}_{1}$}};
  \end{tikzpicture}
   
  \begin{tikzpicture}[general, scale=0.8]
   \axeX{-1}{2}{1}
   \axeY{-1}{1}{}
   \origine
   \draw [domain=-0.854:1.8, color=J1, smooth] plot(\x,{-(3*(\x)^5-5*(\x)^4)/4});
   \draw (0.5,0.55) [color=J1] node{{\boldmath $\mathcal{C}_{2}$}};
  \end{tikzpicture}
  
  \begin{tikzpicture}[general, scale=0.8]
   \axeX{-1}{1.8}{1}
   \axeY{-1}{1}{}
   \origine
   \draw [domain=-0.38:1.15, color=J1, smooth] plot(\x,{-(\x)^2*(\x-1)*5});
   \draw (1.25,0.5) [color=J1] node{{\boldmath $\mathcal{C}_{3}$}};
  \end{tikzpicture}
 \end{multicols}
 \setlength{\columnseprule}{1pt}
\end{exercice}
