So here I am doing my easy Diff Eq homework involving 2x2 matrices and finding the Eigen values and associated vectors when all of a sudden I come across a 3x3. While it doesn't seem like that big of a deal, it was quite a jump from what I was doing.
I know how to work the equation and everything, but I'm getting a different answers then what someone else is...and no one else I know has done it yet.
Therefore, is there an easier way to find an answer to this problem or do I have to try the problem a 3rd time.
For curious minds:
|30 -16 -22|
|36 -20 -26|
|12 -06 -09|
My equation (using x instead of lambda) came out to be: (x^3)-(x^2)-534x-10560. The other person who did this problem got 0 instead of 10560. I could just stick with my answer but I don't want to do synthetic division on that to find the roots (if there even are any)
I know how to work the equation and everything, but I'm getting a different answers then what someone else is...and no one else I know has done it yet.
Therefore, is there an easier way to find an answer to this problem or do I have to try the problem a 3rd time.
For curious minds:
|30 -16 -22|
|36 -20 -26|
|12 -06 -09|
My equation (using x instead of lambda) came out to be: (x^3)-(x^2)-534x-10560. The other person who did this problem got 0 instead of 10560. I could just stick with my answer but I don't want to do synthetic division on that to find the roots (if there even are any)