In Exercise, we consider the partially decoupled system

Although we can use the method described in this section to derive the general solution to this system, why should we immediately know that Y(t) = (x(t), y(t)) = (e2t - e-t, e-2t) is not a solution to the system?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.