2 \usepackage{../style}

     2 \usepackage{../style}

     3 

     3 

     4 \begin{document}

     4 \begin{document}

     5 

     5 

     6 \section*{Homework 2}

     6 \section*{Homework 2}

     7 

     9 

     8 \begin{enumerate}

    10 \begin{enumerate}

     9 \item What is the language recognised by the regular expressions

    11 \item What is the language recognised by the regular expressions

    10   $(\varnothing^*)^*$.

    12   $(\varnothing^*)^*$.

    11 

    13