Chapter 6.5, Problem 4P

In each of problem $1$ through $14$, find a fundamental matrix for the given system of equations. In each case, also find the fundamental matrix $e^{\text{At}}$.

$\text{x}\text{'}=\left(\begin{array}{cc}1/2& -1/4\\ 1& -1/2\end{array}\right)\text{x}$