Chapter 6.5, Problem 5P

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 $e^{\text{At}}$.

$\text{x}\text{'}=\left(\begin{array}{cc}1& -5/2\\ 1/2& -1\end{array}\right)\text{x}$