\begin{exercice}
   L'ensemble des solutions de l'équation $\sin 3x=\dfrac{1}{2}$ sur $]-\pi~;~\pi]$ est :
      \begin{ChoixQCM}{2}
      \item $\left\{-\dfrac{11\pi}{18}~;~\dfrac{\pi}{18}~;~\dfrac{13\pi}{18}\right\}$
      \item $\left\{-\dfrac{11\pi}{12}~;~-\dfrac{5\pi}{12}~;~\dfrac{\pi}{12}~;~\dfrac{7\pi}{12}\right\}$\item $\left\{-\dfrac{5\pi}{9}~;~-\dfrac{4\pi}{9}~;~\dfrac{\pi}{9}~;~\dfrac{2\pi}{9}~;~\dfrac{8\pi}{9}\right\}$
      \item $\left\{-\dfrac{11\pi}{18}~;~-\dfrac{7\pi}{18}~;~\dfrac{\pi}{18}~;~\dfrac{5\pi}{18}~;~\dfrac{13\pi}{18}~;~\dfrac{17\pi}{18}\right\}$
      \end{ChoixQCM}
       \begin{corrige}
      \reponseQCM{d}
    \end{corrige}
    \end{exercice}

