Second Chapter

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$\begin{exercise} % latex2html id marker 23This is the first exercise in Chapte... ...se~\ref{x12}). \answer Answer to the first exercise in Chapter~2. \end{exercise}$

$\begin{exercise} This is the second exercise in Chapter~2. This is the second ex... ...in Chapter~2. \answer Answer to the second exercise in Chapter~2. \end{exercise}$