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## Homework Statement

For [tex]t\in\mathbb{R}[/tex], let:

[tex]A=\left[\begin{array}{ccc}

-1 & 0 & 0\\

0 & 2 & 2t\\

0 & 0 & 2\end{array}\right][/tex]

Get the solution for the general equation: [tex] X'=A(t)X [/tex]

## Homework Equations

## The Attempt at a Solution

I done many of these problems, all with constant coefficients, but I don't know how to do in this case.