\input epsf
\nopagenumbers
\magnification=\magstep1

\noindent {\bf Problem statement} ~Compute:

\medskip

\+a) $\displaystyle{\int_{0}^{\pi \over 2}\! \left( \int_{y}^{\pi \over
2} {{\sin x} \over x} \, dx \right) dy}$\quad

&b) $\displaystyle{\int_{0}^{1} \!\left( \int_{\sqrt{y}}^{1} {e^{( 7x^3)
}} \, dx \right) dy}$\quad

&c) $\displaystyle{\int_{0}^{1} \! \left( \int_{x}^{x^{1/3}}
{\sqrt{1-y^4}} \, dy \right) dx}$\cr

\medskip

\noindent {\bf Hint} Write 'em as a double integral, then
re-iterate.









\vfil\eject\end