MAT244--2019F > Term Test 2

Problem 4 (morning)

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Yue Sagawa:
I found the general real solution.

Yiran Wang:
This is the solution

Yiran Wang:

Victor Ivrii:
What everybody is missing:

we see that characteristic roots $k_{1,2}= \pm \sqrt{8}i$ are purely imaginary. So, it is  center  and with  counter-clock-wise  orientation  since the bottom-left element is positive.


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