Calculer~:

\begin{enumerate}[a)]
	\item \nbPointsEnumi{1}$5^{-2}$

	\item \nbPointsEnumi{1}$121^{\frac{1}{2}}$

	\item \nbPointsEnumi{1}$\left( 2^{3} - 3^{2} \right)^{3}$
\end{enumerate}

Simplifier l'expression autant que possible~:

\begin{enumerate}[a),resume]
	\item \nbPointsEnumi{3}\(\dfrac{\left(2ab^{2}\right)^{3}}{9a^{5}b^{4}} \cdot 3a^{-1}b^{5}\)
\end{enumerate}
