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**!!Really Quick Differential Equation question...**

**1. Homework Statement**

Alright so this is what I have for this problem. As you can see I used -i to find my Eigenvectors.....now when I find my solution and plug it back into the original, I am getting the opposite of what I am supposed to get.

Was I supposed to use -t instead of +t in my solution since I used lambda=-i to find it?

Or did I make some stupid algebraic error again?

THanks!