In 3 and 4, use (3) to compute eAt
Chapter 10, Problem 3(choose chapter or problem)
In Problems 3 and 4, use (3) to compute \(e^{\mathbf{A} t}\).
\(\mathbf{A}=\left(\begin{array}{rrr}1 & 1 & 1 \\ 1 & 1 & 1 \\ -2 & -2 & -2\end{array}\right)\)
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