%<solutions>\documentclass[answers]{exam}
%<!solutions>\documentclass[answers]{exam}
%<!solutions>\noprintanswers

\begin{document}
	\begin{questions}
		\begin{question}
			Evaluate $\displaystyle \int_0^1 e^x\ dx$.
			%% START: WORKSHEET 1 QUESTION 1 SOLUTION
			%<*solutions> %% (fold)
				\begin{solution}

				\end{solution}
			%</solutions> %% (end)	
			%% END: WORKSHEET 1 QUESTION 1 SOLUTION
		\end{question}

		\begin{question}
			Evaluate $\displaystyle \int_1^{\infty} \frac{1}{x^2}\ dx$.
			%% START: WORKSHEET 1 QUESTION 2 SOLUTION
			%<*solutions> %% (fold)
				\begin{solution}

				\end{solution}
			%</solutions> %% (end)	
			%% END: WORKSHEET 1 QUESTION 2 SOLUTION
		\end{question}

	\end{questions}
\end{document}
		

