\documentclass[14pt]{classPres}
\usepackage{tkz-fct}

\author{}
\title{}
\date{}

\begin{document}
\begin{frame}{Questions flashs}
    \begin{center}
        \vfill
        Tsti2d
        \vfill
        30 secondes par calcul
        \vfill
        \small \jobname
    \end{center}
\end{frame}

\begin{frame}{Calcul 1}
    Calculer la quantité suivante
    \[
        \int_{0}^{100} 5x dx = 
    \]
\end{frame}

\begin{frame}{Calcul 2}
    Résoudre
    \[
        3 + \frac{x}{2} \geq 0
    \]
\end{frame}

\begin{frame}{Calcul 3}
    Soit
    \[
        \left\{
            \begin{array}{l}
                u_{n+1} = 2u_n + 1 \\
                u_0 = 4
            \end{array}
            \right.
    \]
    Calculer $u_2$
\end{frame}

\begin{frame}{Calcul 4}
    À quelle lettre correspond l'angle $\dfrac{7\pi}{3}$.
    \begin{center}
        \begin{tikzpicture}[scale=2.5]
            \cercleTrigoNoOIJ
            \foreach [count=\i] \x in {a,b,...,l} {
                % dots at each point
                \filldraw[black] ({\i*30}:1cm) circle(0.6pt);
                \draw ({\i*30}:1.2cm) node {\x};
                \draw (0,0) -- ({\i*30}:1cm);
            }
        \end{tikzpicture}
    \end{center}
\end{frame}

\begin{frame}{Fin}
    \begin{center}
        On retourne son papier.
    \end{center}
\end{frame}


\end{document}