Finding the Wronskian Of a system of Differential Equations, Using Abel's Formula

This video isn't meant to explain why this works but rather how to do so, I found shockingly little information about this online and hopefully this makes it a bit easier to find for anyone in the future looking for it.

------ Some Bonus Explanation ------
- The trace of a matrix is found by adding up all the elements along its diagonal, in the video that was found by adding 3 and -2
- late edit, but I was marked correct for doing that exact method on my exams so if a question asks for something like this I would say it's safe to assume the method is correct.
This may or may not be correct and I will update it as I
find out more information, But a similar problem appeared on my exam, and I found no resources online to back up my notes, I checked with some of my classmates and we all seem to agree that this is how you solve that problem.

Disclaimer: I am a high school student, not a math professor or even intending to become a math major.

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