\input epsf
\nopagenumbers
\magnification=\magstep1

\noindent {\bf Problem statement} a) There are values of the constants
$A$ and $B$ so that the derivative of $Axe^x+Be^x$ is $xe^x$. Find
these values.

\medskip

\noindent b) Compute $\displaystyle\int_1^2 xe^x\,dx$.









\vfil\eject\end